Prove I attempted the question start with the RHS, using the addition formulae and ended off with cot^2A-cot^2B...
Follow Math Help Forum on Facebook and Google+
Originally Posted by Punch Prove I attempted the question start with the RHS, using the addition formulae and ended off with cot^2A-cot^2B... lets start from the RHS . this is in the form of
View Tag Cloud