Question:
Let A(3, 0, - 1) , B(2, 10, 6) and C(1, 2, 1) be the vertices of a triangle and M be the mid-point of AC. If G divides BM in the ratio 2:1, then cos( ∠GOA ) (O being the origin) is equal to______.
Let A(3, 0, - 1) , B(2, 10, 6) and C(1, 2, 1) be the vertices of a triangle and M be the mid-point of AC. If G divides BM in the ratio 2:1, then cos( ∠GOA ) (O being the origin) is equal to______.
Updated On: Mar 7, 2026
- 1/√15
- 1/2√15
- 1/√30
- 1/6√10
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The Correct Option is A
Solution and Explanation
The correct answer is(A): 1/√15
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