0
The coordinates of foot of the perpendicular from point (2,3) to the line y = 3 x + 4 are.
Lines a1x + b1y + c1 = 0 and a2x + b2y + c2 = 0 will be mutually perpendicular if.
a1 b2 - b1 a2 = 0
a1 a2 + b1 b2 = 0
a12 b2 + b12 a2 = 0
a1 b1 + a2 b2 = 0
If the lines 3 x - 4 y - 13 = 0, 8 x - 11 y - 33 = 0 and 2 x - 3 y + λ = 0 are concurrent , λ =
7
-7
5
-5
If P is the length of perpendicular from origin to the line which intersects at a and b on axes , then.
a2 + b2 = p2
a2 + b2 = 1/p2
1/a2 + 1/b2 = 2/p2
1/a2 + 1/b2 = 1/p2
x - y - 2 = 0
