Straight Line Question 10
Question: If $ \frac{1}{a{b}’}+\frac{1}{b{a}’}=0, $ then lines $ \frac{x}{a}+\frac{y}{b}=1 $ and $ \frac{x}{{{b}’}}+\frac{y}{{{a}’}}=1 $ are [MP PET 1984]
Options:
A) Parallel
B) Inclined at $ 60^{o} $ to each other
C) Perpendicular to each other
D) Inclined at $ 30^{o} $ to each other
Correct Answer: C
Show Answer
Answer:
Solution:
BETA
