Let $\mathbf{a}, \mathbf{b}, \mathbf{c}$ be three vectors (i) $(\mathbf{a} \times \mathbf{b}) \times \mathbf{c}=(\mathbf{a} \cdot \mathbf{c}) \mathbf{b}-(\mathbf{b} \cdot \mathbf{c}) \mathbf{a}$ (ii) $\mathbf{( a )} \times(\mathbf{b} \times \mathbf{c})=(\mathbf{a} \cdot \mathbf{b}) \mathbf{c}-(\mathbf{a} \cdot \mathbf{c}) \mathbf{b}$

Question

Let $\mathbf{a}, \mathbf{b}, \mathbf{c}$ be three vectors (i) $(\mathbf{a} \times \mathbf{b}) \times \mathbf{c}=(\mathbf{a} \cdot \mathbf{c}) \mathbf{b}-(\mathbf{b} \cdot \mathbf{c}) \mathbf{a}$ (ii) $\mathbf{( a )} \times(\mathbf{b} \times \mathbf{c})=(\mathbf{a} \cdot \mathbf{b}) \mathbf{c}-(\mathbf{a} \cdot \mathbf{c}) \mathbf{b}$, (i) is incorrect, (ii) is correct, (i) is correct, (ii) is incorrect, Both (i) and (ii) are correct, Both (i) and (ii) are incorrect

MARKS App · Accepted Answer

(i) is correct and (ii) is incorrect.

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