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  • The vector having initial and terminal points as (2, 5, 0) and (–3, 7, 4), respectively isA .-i+12j+4k

The vector having initial and terminal points as (2, 5, 0) and (–3, 7, 4), respectively is

\\A. -\hat{i}+12 \hat{j}+4 \hat{k}\\ B. 5 \hat{i}+2 \hat{j}-4 \hat{k}\\ C.-5 \hat{i}+2 \hat{j}+4 \hat{k}\\ D.\hat{i}+\hat{j}+\hat{k}

Answers (1)

C)

Let initial point be A(2,5,0) and terminal point be B(-3,7,4).So, the required vector joining A and B is the vector \vec{AB}  .

\\ \Rightarrow \vec{\mathrm{AB}}=(-3-2) \hat{1}+(7-5) \hat{\mathrm{j}}+(4-0) \hat{\mathrm{k}} \\ =-5 \hat{\imath}+2 \hat{\jmath}+4 \hat{\mathrm{k}}

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infoexpert22

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