مقدار v=8i+15j-17k (مراجعة ٥):

√(578) 82+152+172=578 — ثم نقسم على المقدار لمتجه الوحدة.

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المتجهات في الفضاء question — Mathematics Tawjihi, with answer

مقدار $\vec{v}=8\hat{i}+15\hat{j}-17\hat{k}$ (مراجعة ٥):

المتجهات في الفضاءLevel: Medium

Choices

\sqrt{578}

40

1

17

The answer

\sqrt{578}

Explanation

8^2+15^2+17^2=578

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المتجهات في الفضاء question — Mathematics Tawjihi, with answer

مقدار v⃗=8i^+15j^−17k^\vec{v}=8\hat{i}+15\hat{j}-17\hat{k}v=8i^+15j^​−17k^ (مراجعة ٥):

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مقدار $\vec{v}=8\hat{i}+15\hat{j}-17\hat{k}$ (مراجعة ٥):