1.

A line through P(3,4) cute the lines x =6 and y=8 at L and M respectively. Q is a variable point on the line such that 1/PQ=1/PL+1/PM then the locus of Q is

Answer»

`4x+3y-36 = 0`
`x^2+y^2 = 36`
`3x-4y-36 = 0`
`4x^2+9y^2 = 36`

ANSWER :A


Discussion

No Comment Found