Which trigonometric identity is INCORRECT? A: sin^2 x + cos^2 x = 1 B: tan x = (sin x)/(cos x) C: sin x =

Question

Which trigonometric identity is INCORRECT?

A: sin^2 x + cos^2 x = 1

B: tan x = (sin x)/(cos x)

C: sin x = 1/(csc(x))

D: tan^ 2 x 1 sec^ 2 x​

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Thiên Hương 7 months 2021-07-27T04:09:49+00:00 1 Answers 3 views 0

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  1. hongcuc2
    0
    2021-07-27T04:11:47+00:00
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    Answer:

    option d

    Step-by-step explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )