JEE MATHEMATICS MCQ: PAIR OF STRAIGHT LINES

1 Easy

1 of 1

Application +4 | -1

If the sum of the slopes of the lines given by

4 x^2+2 \lambda x y-7 y^2=0

is equal to the product of the slopes, then

\lambda

is equal to

View answer and explanation

Correct option: B

-2

The correct answer is B (-2) because the condition

m_1 + m_2 = m_1m_2

leads to

\lambda = -2

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