a x^{2}-4 x y-2 y^{2}=0 represents a pair of lines. If \theta is the angle between these lines, \cos \theta=\frac{1}{5} and the possible values of ' a ' are a_{1} and a_{2}(a_{1} < a_{2}) then a_{1}+3 a_{2}=

TS EAMCET 18-July-2022 Shift 1 Solved Paper

Section: Mathematics

Question : 47 of 160

Marks: +1, -0

ax2−4xy−2y2=0 represents a pair of lines. If θ is the angle between these lines, cos‌θ=‌

and the possible values of ' a ' are a1 and a2(a1<a2) then a1+3a2=

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