Which of the following is not an identity?
O A. tan²x = sec2x- sinax-cos2x
O B. (tanx + cotx)...
Mathematics, 02.04.2021 23:40 shygorringe
Which of the following is not an identity?
O A. tan²x = sec2x- sinax-cos2x
O B. (tanx + cotx)2 = csc2 x+ sec2 x
O C. (cosx + sinx)2 = 1 + 2cosx sinx
O D.
1+ cos2x
sinx
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