Chapter 3, Problem 54P

For the vectors in Fig. 3-32, with a = 4, b = 3, and c = 5, calculate (a) $\stackrel{\to }{a}$ · $\stackrel{\to }{b}$, (b) $\stackrel{\to }{a}$ · $\stackrel{\to }{c}$, and (c) $\stackrel{\to }{b}$ · $\stackrel{\to }{c}$.