Pair Of Straight Lines Question 153
Question: If the bisectors of the angles of the lines represented by $ 3x^{2}-4xy+5y^{2}=0 $ and $ 5x^{2}+4xy+3y^{2}=0 $ are same, then the angle made by the lines represented by first with the second, is
Options:
A) $ 30^{o} $
B) $ 60^{o} $
C) $ 45^{o} $
D) $ 90^{o} $
Show Answer
Answer:
Correct Answer: D
Solution:
Here both the vectors are perpendicular to each other. So, under the given condition it is clear that angle is $ 90{}^\circ $ .
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