Question

16mn
=p sec @ + q tan e, y = p tan 8 + 9 sec D.
17 cote + cos e = m and cot -cos e = n, prove that (m2 - n2)2
and ses + cosec 0 = n, prove that n(m + 1) (m - 1)​

Answer 1

Step-by-step explanation:

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