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If the circle x^(2)+y^(2)+2 x-2 y+4=0 c...

If the circle `x^(2)+y^(2)+2 x-2 y+4=0` cuts the circle `x^(2)+y^(2)+4 x+2 f y+2`=0 orthogonally then `f=`

A

1

B

2

C

-1

D

-2

Text Solution

Verified by Experts

The correct Answer is:
C
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HIMALAYA PUBLICATION-CIRCLES-QUESTION BANK
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