If θ is the angle between lines whose direction ratios is given by th – InterviewSolution

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1.	If θ is the angle between lines whose direction ratios is given by the relation a+b+c=0 and 2ac−3bc=0, then 5−76cos2θ=
Answer» If $θ$ is the angle between lines whose direction ratios is given by the relation $a + b + c = 0$ and $2 a c - 3 b c = 0,$ then $5 - 76 {cos}^{2} θ =$

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