- #1
Agent M27
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Homework Statement
The problem is to simplify the following trig equation:
csc^4x - cot^4x
Homework Equations
There really isn't any I can think of.
The Attempt at a Solution
When I attempt to simplify csc^4x - cot^4x I arrive at the result, from factoring, (csc^2x + cot^2x)(csc^2x - cot^2x). The book shows just the addition portion of my factoring. I have asked my professor and he said that I need not worry as the exam will be multiple guess?? I however am not satisfied with guessing, and would like to know if there is some fundamental rule or operation which I have overlooked. Thanks in advance and I apologize for the eq not being in a Tex format, I'm on my phone. Take care.
Joe