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If p and q are the lengths of perpendicu...

If p and q are the lengths of perpendicular from origin to the lines `x cos theta-y sin theta=k cos 2 theta and x sec theta +y "cosec" theta =k` respectively. Prove that `p^(2)+4q^(2)=k^(2)`.

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If p and q are the lengths of perpendiculars from the origin to the lines xcos theta -ysin theta = k cos 2 theta and x sec theta + y cosec theta= k , respectively, prove that p^2 + 4q^2 = k^2 .

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