Chapter 6.CR, Problem 55E

To determine

(a)

To find:

The phase of the curves $y_1=25\sin 3\left(t-\frac{\pi }{2}\right)$;$y_2=10\sin \left(3t-\frac{5\pi }{2}\right)$.

To determine

(b)

To find:

The phase difference between the curves $y_1=25\sin 3\left(t-\frac{\pi }{2}\right);y_2=10\sin \left(3t-\frac{5\pi }{2}\right)$

To determine

(c)

Whether the curves $y_1=25\sin 3\left(t-\frac{\pi }{2}\right);y_2=10\sin \left(3t-\frac{5\pi }{2}\right)$ are in phase or out of phase.

To determine

(d)

To find:

The graph of both curves $y_1=25\sin 3\left(t-\frac{\pi }{2}\right);y_2=10\sin \left(3t-\frac{5\pi }{2}\right)$