If \cos^{-1}(x/2) + \cos^{-1}(y/3) = θ , then 9x^2 - 12 xy cos θ + 4y^2 =

AP EAMCET Engineering 2018 Apr 23 Shift 1 Paper

Section: Mathematics

Question : 24 of 160

Marks: +1, -0

If cos−1(

) + cos−1(

) = θ , then 9x2 - 12 xy cos θ + 4y2 =

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