how to guess the value of the integral sinax cosbx and for what values of a and b is your formula valid?
used the formula 1/2[(sin A-B)+sin(A+B)]
The Attempt at a Solution
this is what i got -cos(a+b)/2(a+b)-cos(a-b)/2(a-b).after that to guess the values of a and b i am lost.
Any help would be appreciated
thanx in advance!!