You need to evaluate the product of the vectors `u = u_x*i + u_y*j, v = v_x*i + v_y*j` , such that:
`u*v = u_x*v_x + u_y*v_y`
`u*v = (7)*(-3) + 1*(2)`
`u*v = -21 + 2`
`u*v = -19`
Hence, evaluating the product of the vectors `u = u_x*i + u_y*j, v = v_x*i + v_y*j,u = <7,1>, v = <-3,2>,` yields `u*v = -19.`
No comments:
Post a Comment