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Length of the tangents from the point (1...

Length of the tangents from the point `(1,2)` to the circles `x^(2)+y^(2)+x+y-4=0` and `3x^(2)+3y^(2)-x-y-k=0` are in the ratio `4:3`, then k is equal to a) `(37)/(2)` b)`(4)/(37)` c)21 d)`(39)/(4)`

A

`(37)/(2)`

B

`(4)/(37)`

C

21

D

`(39)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
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