Mathematics · Coordinate Geometry
If A = (0, 4, -3), B = (5, 0, 12), and C = (7, 24, 0) are three points in 3D space, then the value of ∠BAC is:
- 190°✓
- 2cos-1(1338)
- 3cos-1(16√13)
- 460°
Correct answer
90°
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