Let a and b be two unit vectors and θ is the angle between them. Then vector a+b is a unit vector if (A) θ = π/4 (B) θ =π/3

1 Answer

answered Jan 24, 2018 by mdsamim (213,225 points)
selected Jan 24, 2018 by sforrest072

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Let a and b be two unit vectors and θ is the angle between them. Then vector a+b is a unit vector if (A) θ = π/4 (B) θ =π/3

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