If p and q are respectively the perpendiculars from the origin upon the straight lines whose equations are x\sec\theta+y\cosec\theta=a and x\cos\theta-y\sin\theta=a\cos2\theta, then 4p^2+q^2 is equal to

KEAM 2014 Math Paper

Question : 111 of 120

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If p and q are respectively the perpendiculars from the origin upon the straight lines whose equations are x‌sec‌θ+y‌cosec‌θ=a and x‌cos‌θ−y‌sin‌θ=a‌cos‌2‌θ, then 4p2+q2 is equal to

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