Posted by Sangita on Wednesday, March 28, 2012 at 8:37am.
Which of the following is equivalent to 1 − cos 2 θ/cos 2 θ?
A. sec2 θ
B. (csc 2 θ ) 1
C. tan 2 θ
D. sin 2 θ
E. –1/sin2 θ

Trigonometry  Reiny, Wednesday, March 28, 2012 at 8:41am
you must mean
(1  cos^2 Ø) / cos^2 Ø
(the way you typed it, you would get 11 = 0 )
(1  cos^2 Ø) / cos^2 Ø
= sin^2 Ø/cos^2 Ø
= tan^2 Ø

Trigonometry  Sangita, Wednesday, March 28, 2012 at 8:42am
sorry, they're all squared θ not 2 θ
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