JEE MATHEMATICS MCQ: MULTIPLE AND SUBMULTIPLE ANGLES

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Application +4 | -1

The value of

\left( {1 + \cos \,\,\frac{\pi }{6}} \right)\,\,\left( {1 + \cos \,\,\frac{\pi }{3}} \right)\,\,\left( {1 + \cos \,\,\frac{{2\pi }}{3}} \right)\,\,\left( {1 + \cos \,\,\frac{{7\pi }}{6}} \right)

View answer and explanation

Correct option: A

\frac{3}{{16}}

Option A (

\frac{3}{{16}}

) is correct because it is derived by substituting the values of the cosine function and simplifying the expression.

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