JEE MATHEMATICS MCQ: TRIGONOMETRY RATIOS

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Application +4 | -1

\sin x+\sin ^2 x-1

, then

\cos ^{14} x+3 \cos ^{10} x+3 \sin ^4 x+

\cos ^4 x

is equal to

View answer and explanation

Correct option: A

Option A (1) is correct because the given condition leads to

\sin x = \cos^2 x

, and substituting this into the expression simplifies it to 1.

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\triangle A B C

C

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\sin ^2(A / 2)+\sin ^2(B / 2)-\sin ^2(C / 2)=