Vectors  and  lie in the xy plane.(a) Use Eq. (2-48) on p. 91 to evaluate  expressing the...

Vectors  and  lie in the xy plane.

(a) Use Eq. (2-48) on p. 91 to evaluate  expressing the resulting vector using Cartesian representation.

(b) Evaluate  by computing the determinant of a matrix, using either Method 1 or Method (2)

Figure P2.91