JEE MATHEMATICS MCQ: MULTIPLE AND SUBMULTIPLE ANGLES

1 Easy

1 of 1

Application +4 | -1

The value of

\sin \,\,36^\circ \,\,\sin \,\,72^\circ \,\,\sin \,\,108^\circ \,\,\sin 144^\circ

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Correct option: D

\frac{5}{{16}}

Option D (5/16) is correct because it is the result of simplifying the given expression using trigonometric identities and known values of sine functions.

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{\cos ^4}\theta - {\sin ^4}\theta

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\cos ^{2} 10^{\circ}-\cos 10^{\circ} \cos 50^{\circ}+\cos ^{2} 50^{\circ}

is : In a

\triangle P Q R, \angle R=\frac{\pi}{2}

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\tan \left(\frac{Q}{2}\right)

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a x^2+b x+c=0, a \neq 0

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