Precalculus Mathematics Homework Help Forum

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Free pre-calculus mathematics homework help from qualified mentors. Math courses prior to calculus homework. Please use the template when requesting help and show your work.
Estimating the Gradient of a Graph: Student's Attempt
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881
Proof about two disjoint non-empty sets ## S ## and ## T ##
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11
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1K
Divisibility Test: Determine if a Number is Divisible by 6, 8, 4
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7
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867
Proving the result of the following limit
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10
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857
Express the given matrix in the form ##L_1DU_1##
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9
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827
Finding square root of number i.e. ##\sqrt{\dfrac{16}{64}}##
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17
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892
Finding the nth term of a sequence
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12
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2K
Without evaluating the Legendre symbols, prove the following....
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14
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Prove that there are infinitely many primes of the form ## 8k-1 ##
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4
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Prove the identity matrix is unique
2
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57
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Prove relation between the group of integers and a subgroup
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6
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701
Solving Simultaneous Equations: 4x + 5y =12 and -8x + 4y =32
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4
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984
How many birds of each kind did I buy?
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5
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875
How do we get from one step to another in these factorial equations?
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25
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Solve the given trigonometry problem
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10
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Determine the set of odd primes ## p ##?
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14
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Binary operation on equivalence classes
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3
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838
Find all possible solutions of x^3 + 2 = 0
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9
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Find all the solutions of the congruence
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6
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730
Show that ## p ## divides ## 2^{(p-1)/2}-1 ##
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1
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771
Proof of Inequality: Induction & Derivation Help
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12
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1K
Evaluate the Legendre symbol ## (999|823) ##
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3
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767
Finding the Distance to a Building with Trigonometry
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1K
Finding the Volume of a Slightly non-Rectangular Box
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19
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What does the identity mean here?
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3
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612
Verify that ## A(225)\geq 1 ##
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1
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814
F(x)=(x+1)^0.5, h(x)=x^2+3, what is the range of f(h(x))?
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4
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899
Verify that ## L(1, \chi)\neq 0 ##
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4
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797
Evaluating several powers of ##x## from a given equation
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6
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915
Analysis of the mechanics of skydiving
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1
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715
How to construct a table of values for Dirichlet characters?
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18
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Show that (a-b) + (c-d) = -(b+d) - (-a-c)
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6
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786
What is the formula for finding the nth partial sum?
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15
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983
Master Factorization with Step-by-Step Guide for x^4 - 3x^2 - 4
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19
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1K
How Do You Calculate Angles AEC and ADC in Geometry?
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8
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1K
Find the remainder when ## 823^{823} ## is divided by ## 11 ##
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14
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1K
Solve the given simultaneous equations that involves hyperbolas
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4
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764
Calculate the position vector for 3di
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1
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856
Question about vector coordinates
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4
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824
Inequality involving a reciprocal - where's the mistake?
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12
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1K
Solve the simultaneous linear congruences
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4
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989
Conditional probability problem
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15
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1K
Solving an inequality involving absolute values
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11
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1K
Solve the given permutation problem
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1
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844
Find the highest power of ## 3 ## dividing ## 823 ##
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9
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1K
Proving that the inverse of a rational number exists
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8
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1K
Prove the trigonometry identity and hence solve given problem
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5
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1K
Set properties of even (##E##) and odd (##I##) integers
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5
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815
Find the length of PA - deductive Geometry
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1
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638
Help simplifying this algebraic expression please
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4
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795
Prove that ## li(x)\sim \frac{x}{\log x} ##.
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3
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965
Determine the day of the week on which you were born
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18
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1K
Graph Sin(2x+6): Is Parent Function the Best Option?
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6
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961
Find the constants ## A ## and ## B ##
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1
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855
Using this Libre Calc statement: =if(B4=50,100)
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3
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768
Prove that ## \sum_{n\leq x}\frac{\phi(n)}{\sqrt{n}}=Cx^{3/2}+.... ##.
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4
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1K
Solving an equality with absolute values
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How to find the constant B in here?
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Prove that the altitudes of a triangle are concurrent
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3
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1K
Use Euler's summation formula to prove the following....
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Verify this result when ## n=10 ##
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Apply trigonometric methods in solving problems
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1
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846
Checking My Understanding of the Naive Bayes Theorem
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1
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983
Solving trigonometry equation involving half-angle
2
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42
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2K
Prove that ## \sum_{d\mid n} f(d)=\sum_{d\mid n} f(\frac{n}{d}) ##.
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5
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Why does the dot product in this solution equal zero?
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3
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787
How to find out the sin value from cos
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9
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1K
Every S-composite can be expressed as a product of S-primes
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13
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1K
How can we prove the bac-cab rule using a geometrical derivation?
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7
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8K
Prove that ## \sum_{d\mid n}\sigma_{1}(d)\sigma_{1}(\frac{n}{d}) ##
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20
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Prove by the principle of induction
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14
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1K
Find the probability that the shorter piece of a 20cm string is at least 8cm when the string is cut randomly
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2
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882
Problem set with 5 proofs involving odd, even, parity, etc.
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4
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842
Determine all integers ## n ##
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829
Precise definition of tangent line to a curve
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18
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1K
Is the following true, for each positive integer ## k ##?
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19
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Use the Euclidean algorithm to find integers ## a, b, c ##
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5
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871
MHB True or False Question about Square Matrices
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1
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974
Prove that ## 4\mid \sigma_{1}(4k+3) ##
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5
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889
Determine (with proof) the set of all prime numbers
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3
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976
Determine all integers ## n ## for which ## \phi(n)=16 ##
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14
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Prove that ## n ## must be a power of ## 2 ##
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15
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Find the values of a real number ##a## for an inequality to hold
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7
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Prove that ## 1^{p-1}+2^{p-1}+3^{p-1}+\dotsb +(p-1)^{p-1}\equiv -1 ##.
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1
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Establish that ## a\equiv b\pmod {p} ##
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8
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820
Prove that ## 1835^{1910}+1986^{2061}\equiv 0\pmod {7} ##
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19
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Rationalizing this fraction involving square roots
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3
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846
Probability of selecting two white balls from two bags
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2
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1K
Verify that ## x\equiv a^{p-2}b\pmod {p} ## is a solution
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6
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922
Solve the given trigonometry equation
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1
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713
Prove that ## a^{3}+1 ## is divisible by ## 7 ##.
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1
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840
Probability that A will win given a condition
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950
Verify that ## a^{5} ## and ## a ## have the same units digit
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1
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Show that ## 60 ## divides ## a^{4}+59 ##
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2
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850
Find the units digit of ## 3^{100} ## by the use of Fermat's theorem
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1
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1K
Derive ## a^{7}\equiv a\pmod {42} ## for all ## a ##
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6
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1K
Pattern of variables with absolute value exponents
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6
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894
Derive the following congruence....
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3
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Show that ## 168=3\cdot 7\cdot 8 ## divides ## a^{6}-1 ##
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4
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914
Deduce that ## 13\mid (11^{12n+6}+1) ##
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2
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650

Precalculus Homework Help

Precalculus Homework Help involves providing support to students working on assignments related to precalculus, a preparatory course that covers mathematical concepts essential for calculus.

This assistance includes clarifying precalculus topics such as functions, trigonometry, algebraic expressions, and graphing. Tutors or resources offering precalculus homework help aim to reinforce students' understanding of foundational mathematical principles and prepare them for the more advanced concepts introduced in calculus.

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