Q.The pair of lines $ax^2 + 2hxy + by^2 = 0$ and the pair $ax^2 + 2hxy + by^2 + 2gx + 2fy + c = 0$ have the same angle between them if

g = f = 0

c = 0

g^2 + f^2 = c(a + b)

none

The correct solution involves applying the fundamental concept to derive the final value step by step...

Already a member? Login here

Q.The pair of lines ax2+2hxy+by2=0ax^2 + 2hxy + by^2 = 0ax2+2hxy+by2=0 and the pair ax2+2hxy+by2+2gx+2fy+c=0ax^2 + 2hxy + by^2 + 2gx + 2fy + c = 0ax2+2hxy+by2+2gx+2fy+c=0 have the same angle between them if