Unit 3: Geometry and Trigonometry

Topic 3.16: Vector product (HL only) Questions

Practice 20 exam-style questions for IB Math AA SL Topic 3.16. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.

11 mark
2026
The parallelogram with sides v and w has area:
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21 mark
2026
For triangle ABC, the area is given by:
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31 mark
2026
Swapping the order, w×v equals:
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41 mark
2026
If v and w are parallel, then |v×w| is:
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51 mark
2026
For i×j (axis unit vectors), the result is:
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61 mark
2026
The cross product of two 3D vectors is:
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7Find4 marks
2026
Given v = (3, −1, 2) and w = (0, 4, 1), find v×w.
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8Find4 marks
2026
Points A(1, 0, 2), B(3, 1, 2) and C(2, −1, 4). Find AB×AC.
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91 mark
2026
If v×w = 0 (the zero vector) for non-zero v, w, then v and w are:
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10Find3 marks
2026
Find a vector perpendicular to both a = (1, 1, 0) and b = (0, 1, 1).
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111 mark
2026
|v×w| is largest (for fixed magnitudes) when the angle between v and w is:
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12Find2 marks
2026
Vectors a and b have |a| = 7, |b| = 2 and the angle between them is 60°. Find |a×b|.
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13Find4 marks
2026
Find the area of the parallelogram with adjacent sides v = (1, 2, 2) and w = (3, 0, −1).
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141 mark
2026
The middle (j) component of v×w is:
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151 mark
2026
|v×w|² + (v·w)² equals:
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16Show that3 marks
2026
Show that .
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17Show that1 mark
2026
Show that .
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18Find5 marks
2026
Vectors p = (1, −2, 2) and q = (3, 0, 1). (a) Find p×q. (b) Hence find q×p.
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19Find4 marks
2026
Find the area of triangle .
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20Find6 marks
2026
Points A(0, 0, 0), B(2, 1, 2) and C(t, 0, 0) lie in space. (a) Find AB×AC in terms of t. (b) Find the value of t > 0 that makes the area of triangle ABC equal to 3.
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