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The equation of the tangent to the curve...

The equation of the tangent to the curve `x^2-2xy+y^2+2x+y-6=0` at (2,2) is a)`2x+y-6=0` b)`2y+x-6=0` c)`x+3y-8=0` d)`3x+y-8=0`

A

`2x+y-6=0`

B

`2y+x-6=0`

C

`x+3y-8=0`

D

`3x+y-8=0`

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The correct Answer is:
A
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