JEE MATHEMATICS MCQ: PAIR OF STRAIGHT LINES

1 Medium

1 of 1

Application +4 | -1

Three lines

3 x-y=2,5 x+a y=3

and

2 x+y=3

are concurrent, then

a=

View answer and explanation

Correct option: D

-2

Option D (-2) is correct because the determinant formed by the coefficients of the concurrent lines must be zero, leading to a = -2.

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