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If "cot"(alpha+beta=0, then "sin"(alpha+...

If `"cot"(alpha+beta=0,` then `"sin"(alpha+2beta` can be

A

`cos beta `

B

`cos alpha `

C

`sin beta `

D

` cos 2 beta `

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The correct Answer is:
A
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ARIHANT MATHS-TRIGONOMETRIC EQUATIONS AND INEQUATIONS-Exercise (Single Option Correct Type Questions)
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