JEE MATHEMATICS MCQ: TRIGONOMETRY RATIOS

1 Easy

1 of 1

Application +4 | -1

The value of

\cos \,\,480^\circ \,\,.\,\,\sin 150^\circ + \sin \,\,600^\circ \,.\,soc\;\,\,390^\circ

is equal to

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Correct option: D

- 1

Option D (-1) is correct because the expression simplifies to -1 after applying trigonometric identities and evaluating the values.

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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)=