Help me please

For the following pairs of voltages and currents, indicate whether the element involved is a capacitor, an inductor, or a resistor, and the value of C, L or R if sufficient data are given: u = 550 sin( 377t + 50) i11 sin( 377t -40) a) b) u = 36 sin( 754t-1700) i = 4 sin ( 754t-800) c) u=10.5 sin(at-13) i = 1.5 sin( t-13)