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if 1 / (ab') + 1 / (ba') = 0 , then line...

if `1 / (ab') + 1 / (ba') = 0` , then lines ` x/ a + y / b =1` and `x / (b') + y / (a') = 1` are

A

Parallel

B

Inclined at `60^(@)` to each other

C

Perpendicular to each other

D

Inclined at `30^(@)` to each other

Text Solution

Verified by Experts

The correct Answer is:
C
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