Question

Can we solve the lhs and rhs together in trogonometry?

Answer 1

Yes u can but solve it in rough space and in fair make sure that u prove rhs = lhs or lhs= rhs....d easier way is to just retrace the steps when u solve rhs n lhs together

Answer 2

   We can use LHS and RHS together to check our answers, if they are right or wrong.   Also, by putting LHS and RHS together, we can get an idea on how to solve the problem.

   But normally, we are expected to take the LHS and derive using laws and calculations to arrive at the RHS.

OR, it may be possible to start with the RHS and arrive at LHS.