Mathematics · Three Dimensional Geometry
The acute angle between the planes P1: 2x - y + 2z = 5 and P2: x + 2y + 2z = 3 is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1cos-1( 23 )
- 2cos-1( 13 )
- 3cos-1( 2√3 )
- 4cos-1( 49 )✓
Correct answer
cos-1( 49 )
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