JEE MATHEMATICS MCQ: TRIGONOMETRIC EQUATIONS

1 Easy

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Analyzing +4 | -1

The value of

\left(1+\cos \frac{\pi}{8}\right)\left(1+\cos \frac{3 \pi}{8}\right)

\left(1+\cos \frac{5 \pi}{8}\right)\left(1+\cos \frac{7 \pi}{8}\right)

View answer and explanation

Correct option: C

\frac{1}{8}

Option C (

\frac{1}{8}

) is correct because using trigonometric identities, the expression simplifies to

\frac{1}{8}

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