Pair Of Straight Lines Question 56
Question: The angle between the lines represented by the equation $ \lambda x^{2}+{{(1-\lambda )}^{2}}xy-\lambda y^{2}=0 $ , is
Options:
A) $ 30^{o} $
B) $ 45^{o} $
C) $ 60^{o} $
D) $ 90^{o} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ \tan \theta =\frac{2\sqrt{{{[ \frac{{{(1-\lambda )}^{2}}}{2} ]}^{2}}+{{\lambda }^{2}}}}{\lambda -\lambda }\Rightarrow \theta =90{}^\circ $ .
BETA
