Question

The diagonal of the parallelogram whose sides are lx + my + n = 0, lx + my + n'= 0, mx + ly + n = 0, mx + ly+n' = 0 include an angle​

Answer 1

Answer:

The diagonal of the parallelogram whose sides are lx + my + n = 0, lx + my + n'= 0, mx + ly + n = 0, mx + ly+n' = 0 include an angle​

Step-by-step explanation:

Answer 2

Since, distance between parallel lines are same

Parallelogram is a rhombus

In rhombus diagonals are perpendicular to each other

Hence, angle between diagonals = π/2