JEE MATHEMATICS MCQ: TRIGONOMETRIC EQUATIONS

1 Medium

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Application +4 | -1

\sin x+\sin ^2 x=1

then

\cos ^{12} x+3 \cos ^{10} x+3 \cos ^8 x+\cos ^6 x

is equal to -

View answer and explanation

Correct option: A

Option A (1) is correct because the expression simplifies to 1 after substituting

\cos^2 x = \sin x

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