Question

Find the length of the tangent drawn from the point (5, 1) to the circle x² + y² + 6x – 4y – 3 = 0

Answer 1

Given circle is x² + y² + 6x – 4y – 3 = 0 .........(i) 

Given point is (5, 1). Let P = (5, 1)

Now length of the tangent from P(5, 1) to circle (i)