Trig/Math
posted by Tabby on .
2. f(x) = 1/4 cos(1/2 x + pi/2). Find the amplitude, period, and phase shift of the function.
3. f(x) = cos(3x + pi). Find the amplitude, period, and phase shift of the function.

amplitude is 1/4 given
when x/2 = 2pi we have a period
4 pi is period
 pi/2 is phase shift
same deal for the next one