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y= log (xtan x + sec x ),then (dy)/(dx) ...

` y= log (xtan x + sec x ),then (dy)/(dx) =`

A

` (xsec ^(2)x +(1+ sec x) tan x )/( xtan x +sec x ) `

B

` (xsec ^(2)x -(1+ sec x) tan x )/( xtan x +sec x ) `

C

` (xsec ^(2)x + (1- sec x) tan x )/( xtan x +sec x ) `

D

` (xsec ^(2)x + (1+ sec x) tan x )/( xtan x +sec x ) `

Text Solution

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The correct Answer is:
A
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