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Derivative of log (sec theta + tan thet...

Derivative of ` log (sec theta + tan theta )` with respect top ` sec theta ` at
` theta = (pi)/(4) ` is

A

` 0`

B

` 1`

C

` (1)/(sqrt(2)) `

D

` (1)/(2) `

Text Solution

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The correct Answer is:
B
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