Mathematics · 3D Geometry
Find the angle between the planes x + y + z = 1 and x + 2y + 3z = 2.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1cos-1(√67)✓
- 2cos-1(√17)
- 3sin-1(√67)
- 4cos-1(√37)
Correct answer
cos-1(√67)
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