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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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MODERN PUBLICATION-STRAIGHT LINES -EXERCISE
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