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Course: Class 12 math (India) > Unit 13

Lesson 4: Cross product of vectors
Math
Class 12 math (India)
Vector algebra
Cross product of vectors
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Cross product of two vectors (advanced)

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Problem

Two vectors a→ and b→ are shown below. Some of the lengths are mentioned in the figure.
What is |a→×b→|?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi