Practice Cross Product
February 4, 2021
You have 10 questions in this quiz.
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Question 1 of 10
1. Question
 Find the cross product a x b if a = <6, 0, 2> andÂ b = <0, 8, 0>:
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Question 2 of 10
2. Question
2. Find the cross product of a x b if a = i + 3j – 2k and b = i + 5k:
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Question 3 of 10
3. Question
3. Find the cross product of a x b if a = i – j – k and b = 1/2 i + j + 1/2 k:
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Question 4 of 10
4. Question
4. Find the cross product a x b ifÂ
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Question 5 of 10
5. Question
5. Find the vector, not with determinants, but by using properties of cross products:
(i + j) x (i – j)
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Question 6 of 10
6. Question
6. Find u x v, and determine whether u x v is directed into the page or out of the page:
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Question 7 of 10
7. Question
7. Find the area of triangle PQR if:
P(1, 0, 0), Q(0, 2, 0) and R(0, 0, 3).
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Question 8 of 10
8. Question
8. Find the area of triangle PQR if:
P(0, 2, 0), Q(4, 1, 2) and R(5, 3, 1).
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Question 9 of 10
9. Question
9. If a = <1, 2, 1> and b = <0, 1, 3>, find a x b and b x a:
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Question 10 of 10
10. Question
10. Find the area of parallelogram with vertices A (2, 1), B (0, 4), C (4, 2) and D (2, 1):
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