How would u find amplitude and frequency of 42.1 sin(377t + 30 deg.)?

Question

How would u find amplitude and frequency of 42.1 sin(377t + 30 deg.)?

Answer 1

http://www.scribd.com/doc/2415152/Basic-...

Answer 2

see? this is why i have always hated math... that A in statistics was an accident! : P

Answer 3

the equation is:

V=Vm sin(wt+d)

Vm is the amplitude, in our case: 42.1

w = 2 x Pi x frequency

in our case frequency = 377/(2Pi) = 60 hz