- #1
Feodalherren
- 605
- 6
Homework Statement
Homework Equations
Any trig formulas
The Attempt at a Solution
The yellow paper is me switching everything to sin and cos to see if that helps but it doesn't. I'm completely stuck here.
Feodalherren said:Oh yeah, it's problem fifty. Forgot to say that :).
Not at all.Feodalherren said:You can't see the images?
A trigonometric identity is an equation that is true for all values of the variables involved. It is used to simplify and manipulate trigonometric expressions.
Trigonometric identities are important in solving equations, proving theorems, and simplifying complex trigonometric expressions. They are also used in various fields such as physics, engineering, and navigation.
Some common trigonometric identities include the Pythagorean identities, double angle identities, half angle identities, and sum and difference identities.
Trigonometric identities are used in real life for a variety of purposes. They are used in navigation to determine distances and angles, in engineering and construction for calculating dimensions and angles, and in physics and astronomy for understanding the motion of objects and planets.
Yes, trigonometric identities can be proven using algebraic manipulations or geometric proofs. However, some identities are more difficult to prove and may require advanced mathematical concepts.