1.

If the length of the tangent from (2, 5) to the circle x2 + y2 – 5x + 4y + k = 0 is √37 then find k.

Answer»

Length of tangent = √S11 

= √((2)2 + (5)2 - 5 x 2 + 4 x 5 + k) = 37 = 39 + k 

= – 2 units.



Discussion

No Comment Found

Related InterviewSolutions