Chapter 8.2, Problem 69E

(A)

To determine

To find: The exact values of $V\left(0\right),V\left(1\right),V\left(2\right)\text{,}V\left(3\right)\text{ and }V\left(7\right)$ without the help of a calculator.

(B)

To determine

To find: The values of $V\left(3.5\right)\text{ and }V\left(5.7\right)$ with the help of a calculator.

(C)

To determine

To sketch: The graph shown for the function $V\left(t\right)=0.45-0.35\cos \frac{\pi t}{2},0\le t\le 8$ with the help of a graphing calculator.