Question

s.o solve this for me ?
4cos(5x/2).cos(3x/2)+2cosx.(8sinx-1)=5

Answer 1

it is simple
1.solve out the first part of the lhs ny applying the formula of cos A*cos B
2. from there onwards you will be able to get it
(hint: you have to take a common factor out)

Answer 2

i cold not give the full answer because i have to run to work
sorry ....
anyways
hope i helped
#rawr im a tiger

Answer 3

thanks you anyway "^^"