Straight LineHard
Question
If the lines mx + 2y + 1 = 0 and 2x + 3y + 5 = 0 are perpendicular then the value of m is -
Options
A.3
B.−3
C.− 1 / 3
D.1 / 3
More Straight Line Questions
The angle between the pair of lines x2 + 2xy − y2 = 0 is -...The equation to a line passing through the point (2, −3) and sum of whose intercept on the axes is equal to −...If the lines ax + 2y + 1 = 0, bx + 3y + 1 = 0, cx + 4y + 1 = 0 are concurrent, then a, b, c are in -...The equation of the lines which passes throughthe point (3, −2) and are inclined at 60o to theline √3 x + y ...The angle between the lines represented by the equation λx2 + (1 − λ)2 xy − λy2 = 0 is -...