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If θ is the angle between two vectors \(\vec{a}\) and \(\vec{b}\), then 3.6 > 0 only when then \(\vec{a}.\vec{b} \geq 0\) only when 

(A) 0 < θ ≤ \(\frac{\pi}{2}\)

(B) 0 ≤ θ ≤ \(\frac{\pi}{2}\)

(C) 0 < θ < π 

(D) 0 ≤ θ ≤ π

1 Answer

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Best answer

Answer is (B)

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