1. The problem statement, all variables and given/known data What is the exact period of the function f(x)= 6 sin (4x+pi) = a sin (b) 2. Relevant equations Period= 2pi/(abs b) 3. The attempt at a solution I found the period as 2pi/(4+pi), this is said to be no the correct answer, how do you simplify this down so it is the exact value???