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4.6k views
in Vector Algebra – I by (49.1k points)
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A vector makes equal angle with the positive direction of the coordinate axes. Then each angle is equal to …

(a) cos-1 1/3

(b) cos-1 2/3

(c) cos-1 1/√3

(d) cos-1 2/√3

1 Answer

+1 vote
by (46.9k points)
selected by
 
Best answer

(c) cos-1 1/√3

Given α = β = γ   

We know 

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