Find the amplitude of `sinalpha+i(1-cosalpha)`

If sin^4alpha+cos^4beta+2=4sinalphacosbeta,0lt=alpha,betalt=pi/2 then find the value of (sinalpha+cosbeta)dot

Find the period and amplitude of y=sin7x

Find the period and amplitude of y=4sin(-2x)

Find the period and amplitude of y=-sin((1)/(3)x)

The amplitude of (1)/(i) is equal to

Suppose alpha,betaa n dtheta are angles satisfying 0