tan(A) = sin(A)/cos(A)
sec(A) = 1/cos(A) so sec2(A) = 1/cos2(A)
Substituting those into the given equation:
you can see that everything cancels out so E = 1
Claire J.
asked • 11/30/20solve the following
E= (tan A) (sec ^2 A) (cos^3 A)/ sin A
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