1] tanA+sinA=m tanA-sina=n, prove that (m2-n2=16mn 2] cotA-1+cosecA/cota+1-cosecA=1/cosecA-cotA

Asked by  | 31st Aug, 2011, 10:07: PM

Expert Answer:

Please post one query at a time.
The first question should correctly be:
If tan A + sin A = m,  tan A - sin A = n,  prove that (m2 - n2 )2 = 16 mn
Its solution is as follows:

Answered by  | 1st Sep, 2011, 09:41: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.