Home
Class 11
MATHS
If the circle x^(2) + y^(2) - kx - 12y ...

If the circle ` x^(2) + y^(2) - kx - 12y + 4 = 0 ` touches the X-axis then : k =

A

`sqrt12`

B

12

C

`sqrt16`

D

16

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

Circle x^(2) + y^(2) - 8x + 4y + 4 = 0 touches

If the circle x ^(2) + y ^(2) - 6x - 8y+ (25 -a ^(2)) =0 touches the axis of ,y then a equals.

If the circle x ^(2) +y ^(2) - 6x - 8y + (25 -a ^(2)) =0 touches the axis of x, then a equals

If the circle x ^(2) + y^(2) + 2gx + 2fy+ c=0 touches X-axis, then

Equation of the circle concentric with the circle x^(2) + y^(2) - 4x - 6y - 3 = 0 , and touching Y-axis , is

The circle x ^(2) + y^(2) +4x -4y+4=0 touches

The equation of the circle concentric with the circle x^(2) + y^(2) - 6x - 4y - 12 =0 and touching y axis

If the circle x^(2)+y^(2)-4x-6y+lambda=0 touches the axis of x, then determine the value of lambda and the point of contact