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The circles x^2+y^2-6x-8y+12=0, x^2+y^2-...

The circles `x^2+y^2-6x-8y+12=0, x^2+y^2-4x+6y+k=0` , cut orthogonally then k=

A

3x+4y-5=0

B

9x-10y+7=0

C

9x+10y-7=0

D

9x-10y+11=0

Text Solution

Verified by Experts

The correct Answer is:
B
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