JEE MATHEMATICS MCQ: STRAIGHT LINES

1 Easy

1 of 1

Application +4 | -1

If the angle between the lines represented by the equation

y^2+k x y-x^2 \tan ^2 A=0

2 A

, then

k=

View answer and explanation

Correct option: A

Option A (0) is correct because the condition for the angle between the lines to be 2A leads to k = 0 after simplification.

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\left( {{x^2} + 7xy + 2{y^2}} \right)\left( {y - 1} \right) = 0