Find the dot product if

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Find the dot product a⋅b\mathbf{a}\cdot\mathbf{b} if ∣a∣=3|\mathbf{a}| = 3, ∣b∣=4|\mathbf{b}| = 4 and the angle between them is 60∘60^\circ. (a) 636\sqrt{3} (b) 66 (c) 1212 (d) −6-6

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