Let a and b be two vectors. Let |a| = 1, |b| = 4 and a · b = 2. I… | JEE Main 2023 Mathematics PYQ

MCQEasyJEE Main 2023 · 30 January, Shift 2Dot Product

Let $\mathbf{a}$ and $\mathbf{b}$ be two vectors. Let $|\mathbf{a}| = 1, |\mathbf{b}| = 4$ and $\mathbf{a} \cdot \mathbf{b} = 2$ . If $\mathbf{c} = (2\mathbf{a} \times \mathbf{b}) - 3\mathbf{b}$ , then the value of $\mathbf{b} \cdot \mathbf{c}$ is

A
$-24$
B
$-48$
C
$-84$
D
$-60$

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