Q2 experts give solution 1
1
eos A + sin A — I A +1
= cosec A + sec A
If x A + y sin A = m ard
x sin A — y cos A = n, then the
3. If m = a sec A + b tan A arg
n = a tan A + b A. tren prove tha
4. If x = r sin A cos B, y = r sin A sin B and
Z = r cos A, ern prove tha
A + cosec A = n, .
