Let $\mathbf { u } \times \mathbf { v } = \mathbf { i } - \mathbf { j } + 2 \mathbf { k }$ . Find $\mathbf { u } \cdot ( \mathbf { u } \times \mathbf { v } )$ ), if it exists.

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The Answer of Let $\mathbf { u } \times \mathbf { v } = \mathbf { i } - \mathbf { j } + 2 \mathbf { k }$ . Find $\mathbf { u } \cdot ( \mathbf { u } \times \mathbf { v } )$ ), if it exists.

Let u×v=i−j+2k\mathbf { u } \times \mathbf { v } = \mathbf { i } - \mathbf { j } + 2 \mathbf { k }u×v=i−j+2k

Let $\mathbf { u } \times \mathbf { v } = \mathbf { i } - \mathbf { j } + 2 \mathbf { k }$