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If cos^(-1)" 1/x=theta , " then " tan t...

If `cos^(-1)" 1/x=theta , " then " tan theta=`

A

`(1)/(sqrt(x^(2)-1))`

B

`sqrt(x^(2)+1)`

C

`sqrt(1-x^(2))`

D

`sqrt(x^(2)-1)`

Text Solution

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The correct Answer is:
D
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