Class 11 Mathematics Trigonometrical Ratios, Functions and Identities Fundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles

Easy

If $\cot (A+B)=0$,then $\sin (A+2 B)$ is equal to

MHT CET 2022 All MHT CET

A
$\sin 2 A$
B
$\cos A$
C
$\sin A$
D
$\cos 2 A$

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Class 11 Questions

Class 11

Mathematics Questions

Chapter

Trigonometrical Ratios, Functions and Identities

Subtopic

Fundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles

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The expression $[1 - \sin(3\pi - \alpha) + \cos(3\pi + \alpha)] [1 - \sin(\frac{3\pi}{2} - \alpha) + \cos(\frac{5\pi}{2} - \alpha)]$ when simplified reduces to:

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$\operatorname{cosec} 15^{\circ} + \sec 15^{\circ}$ is equal to :

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