Ts Eamcet
Straight Lines And Pair Of Straight Lines
TS EAMCET 2022 (Online) 20th July Evening Shift
MCQ+1 / -02022
The number of real values of $\alpha$ for which the pair of lines represented by $\left(\alpha^2+12|\alpha|\right) x^2+6 x y+(18-21|\alpha|) y^2=0$ are at right angles to each other, is