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Class XII Mathematics - Vector Algebra Quiz
Class XII
Mathematics
Vector Algebra
12 questions
HARD
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Preview questions
1. What is the dot product of two vectors A and B if A = 3i + 4j and B = 2i + j?
10 · 11 · 12 · 9
2. If A = i + 2j + 3k and B = 2i + 3j + 4k, what is A × B?
-1i + 2j + 1k · 1i - 2j + 1k · 1i + 2j - 1k · -1i - 2j + 1k
3. The magnitude of the vector A = 4i - 3j is:
5 · 7 · 2 · 1
4. If vector A = 2i + 3j and vector B = ai + bj, what condition must hold for A and B to be orthogonal?
2a + 3b = 0 · 2a - 3b = 0 · a + b = 0 · a - b = 0
5. The scalar triple product of vectors A, B, and C is zero. What does this imply?
Vectors are coplanar · Vectors are orthogonal · Vectors are equal · Vectors are parallel
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