Straight Line Question 102
Question: If $ 2p $ is the length of perpendicular from the origin to the lines $ \frac{x}{a}+\frac{y}{b}=1 $ , then $ a^{2},8p^{2},b^{2} $ are in
Options:
A)A. P.
B)G.P.
C)H. P.
D)None of these
Correct Answer: C
Show Answer
Answer:
Solution:
Þ $ \frac{1}{a^{2}}+\frac{1}{b^{2}}=\frac{2}{8p^{2}}\Rightarrow \frac{1}{a^{2}},\frac{1}{8p^{2}},\frac{1}{b^{2}} $ are in A. P.
Þ $ a^{2},8p^{2},p^{2} $ are in H.P .
BETA
