questions below:

Find the length and direction (when defined) of u x v and v x u. u = 8i + 5j - k, v=0 . . . luxv| = (Simplify your answer.) Select the correct choice and fill in any answer boxes in your choice below. O A. The direction of u x v is i+ j + k . (Simplify your answers, including any radicals. Use integers or fractions for any numbers in the expressions.) O B. The direction of u x v is not defined. lvxu| = (Simplify your answer.) Select the correct choice and fill in any answer boxes in your choice below. O A. The direction of v xu is i+ j + k . (Simplify your answers, including any radicals. Use integers or fractions for any numbers in the expressions.) O B. The direction of v x u is not defined.Sketch the coordinate axes and then include the vectors u, v, and u x v as vectors starting at the origin. u=i+j v=j-k Choose the correct answer below. 5 O A. uxv O B. uxV x O C. O D. u XV uxv X XA line passes through the points P(5, - 8,1) and Q( - 10,8, - 4). Find the standard parametric equations for the line, written using the base point P(5, - 8,1) and the components of the vector PQ. Let z = 1 - 5t. x = , y=, z= (Type expressions using t as the variable.)