In Exercises 27 and 28, refer to Figure 17.
27. Which of u and -u is equal to v imes w ?
28. Which of the following form a right-handed sysism?
(a) {v,w,u}
(b) {w,v,u}
(d) {u,v,w}
(e) {w,v,-u}
(c) {v,u,w}
(f) {v,-u,w}
In Exercises 27 and 28,refer to Figure 17 27.Which of u and -u is equal to v x w?
b{w,v,u} e{w,v,-u}
(c){v,u,w} f{v,-u,w}
a{v,w,u} d{u,v,w}
FIGURE 17