If p and q are the lengths of perpendiculars from the origin to the lines xcos? -ysin? =kcos2? and xsec? + ycosec? = k , respectively, prove that p^2 + 4q^2 = k^2

Asked by Arun Iyer | 21st Jan, 2011, 06:14: PM

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Answered by  | 21st Jan, 2011, 10:02: PM

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