Question

Hi !

A pair of tangent are drawn from the origine to the circle x²+ y² + 20(x+y) + 20 = 0 . Find its equation . ​

Answer 1

please mark it as braineist answers

Answer 2

Hii !!

Solution:- The equation of the pair of tangent is given by SS1 = T²

Here, S = x² + y² + 20 ( x + y) + 20 , s1 = 20

T = 10(x+y) + 20

•°• SS1 = T²

or, 20 [ x² + y² + 20 (x+ y) +20] = 10² ( x + y+2)²

or, 2x² + 2y² + 5xy = 0 is it's equation

_______________________

Hope it helps you !

@Raj❤