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If cot A = k, then sin A is equal to : (...

If cot A = k, then sin A is equal to : (presume that A is an acute angle)

A

`(k^2)/(sqrt(1+k^2))`

B

`1/k`

C

`-(1)/k`

D

`1/(sqrt(1+k^2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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