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Equation of the tangent line at x=a to t...

Equation of the tangent line at `x=a` to the curve `y=alogsec``x/a` is

A

`(y-alogseca)tan1=x-a`

B

`(x-a)tan1=y-alogsec1`

C

`(x-a)cos1=(y-alogsec1)sin`

D

none

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1B (TANGENT AND NORMAL)
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