Mathematics · Vector Algebra
Determine the angle between the two planes 2x + y - 2z = 3 and 3x - 6y - 2z = 9 using the vector method.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1cos-1(16/21)
- 2cos-1(4/21)✓
- 3cos-1(4/7)
- 4cos-1(8/21)
Correct answer
cos-1(4/21)
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