Identify the function in the form (y = Asin(Bx – C) + D) or (y = Acos(Bx – C) + D)
Find the coefficient (B) of (x)
Use the period formula ( text{Period} = frac{2pi}{|B|} )
If the function uses degrees, use ( text{Period} = frac{360^circ}{|B|} )
Simplify the result
Ignore amplitude, phase shift, and vertical shift when finding the period