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The angle between two planes

The angle between two planes (Question)

For two given planes, find the angle between them.

  • Plane 1 = r.(3i + 5j – 1) = 2
  • Plane 2 = r.(2i + j – k) = 5

Guide:

cos x = (Unit vector of x1)*(Unit vector of x2)

The angle between two planes (Answer)

  1. 46.36

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