Gp1Hwk2 - Group 1 Homework 2 MULTIPLE CHOICE Choose the one...

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Group 1 Homework 2 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the length and direction (when defined) of u × v. 1) u = 3 i , v = 2 j 1) A) 3; 2 k B) 6; - k C) 6; k D) 6; 6 k
2) u = 3 i + 7 j , v = i - j 2) 4 k
3) u = - 5 i - 5 j + 5 k , v = 10 i + 10 j - 10 k 3) )
Solve the problem. 4) Find the area of the triangle determined by the points P(1, 1, 1), Q( - 9, 6, - 3), and R(10, 5, - 10). 4)
5) Find the area of the triangle determined by the points P( - 3, 6, - 4), Q(5, - 8, - 9), and R(6, - 2, - 3). 5) A) 38145 B) 9569 2 C) 38145 2 D) 9569
Find the triple scalar product (u x v) · w of the given vectors. 6) u = i + j + k ; v = 2 i + 4 j + 6 k ; w = 7 i + 8 j + 2 k 6)
7) u = - 5 i - 3 j + 4 k ; v = 2 i - 6 j + 6 k ; w = 3 i - 7 j - 9 k 7)

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