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If y = tan^(-1) (sec x + tan x) " then "...

If `y = tan^(-1) (sec x + tan x) " then " (dy)/(dx)=` ?

A

`(-cos x )/( 1+sin ^(2) x ) `

B

` (cos x)/( 1+sin x ) `

C

` (-sin x )/(1+cos ^(2)x) `

D

` (sin x)/( 1+cos ^(2)x) `

Text Solution

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The correct Answer is:
B
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