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If p and q are the lengths of perpendicular from the origin to the lines x cos q - y sin q = k cos 2 q and x sec q + y cosec q = k respectively. Prove that p2 + 4q2 = k2.
Asked by Topperlearning User | 30 Apr, 2014, 09:08: AM

The perpendicular distance from the origin to the line

x cos q - y sin q = k cos 2 q                                                   ... (i)

Now,
x sec q + y cosec q = k

The perpendicular distance q from the origin to the line (ii)
Answered by | 30 Apr, 2014, 11:08: AM

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