Question

If the circles x2 + y2 - 10x +2y + 10 = 0 and x?
+ y2 - 4x - 6y - 12 = 0 touch each other then
the slope of the common tangent at the point
of contact of the circles is​

Answer 1

Answer:

when two circles touch each other , thus equation of common tangent

is also a equation radical axis of those two given circle.

equation of radical axis is

s

1

−s

2

=0

6x−8y−22=0

3x−4y−11=0

So, eq

n

of tangent at point of contact is also

3x−4y−11=0

slope=

4

3

Hope this help you....