The relation between a, b, a’ and b’ such that the two lines ax +… - Vidyadip

MCQ

The relation between a, b, a’ and b’ such that the two lines ax + by = c and a’x + b’y = c’ are perpendicular is:

A
aa¢ – bb¢ = 0
✓
aa¢ + bb¢ = 0
C
ab + a¢b¢ = 0
D
ab - a¢b¢ = 0

✓

Answer

Correct option: B.

aa¢ + bb¢ = 0

aa¢ + bb¢ = 0

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