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P(-9,-1) is a point on the circle x^2+y^...

P(-9,-1) is a point on the circle `x^2+y^(2)+4x+8y-38=0`. The equation to the tangent at the other end of the diameter thorugh P is

A

`7x-3y=60`

B

`7x+3y=56`

C

`7x-3y=56`

D

`7x+3y=60`

Text Solution

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The correct Answer is:
C
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