SOLUTION: What expression is equivalent to tan^2 A?

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Question 733331: What expression is equivalent to tan^2 A?
Answer by CarterC(2) About Me  (Show Source):
You can put this solution on YOUR website!
Consider the Pythagorean identity!
sin^2(A) + cos^2(A)=1
Divide everything by cos^2(A):
tan^2(A) + 1 = 1/(cos^2(A))
And the solution follows