need help with this can you provide any light on it.....
The instantaneous value of current, i amp, at t seconds is given by
i= 15 sin (100 pi t + 0.6)
the initial phase angle when t =0 expressed in both radians and degrees
the value of i when t=2.5
the time in milliseconds when the current first reaches its maximum value
I need all the help I can get thanks