Question
Determine the vector u = AB and its magnitude, given A(3,7,-2) and B(9,1,5).
Answers
Reiny
u = [9-3,1-7,5+2] = [6,-6,7]
|u| = √(36+36+49) = √121 = 11
|u| = √(36+36+49) = √121 = 11
J
thankyou!