Write the direction cosines of the vector - 2i + j - 5k . - Vidyadip

Question

Write the direction cosines of the vector $-\hat{\text{2i}}+\hat{\text{j}}-\hat{\text{5k}}$.

✓

Answer

$-\frac{{2}}{\sqrt{30}}, \frac{{1}}{\sqrt{30}},-\frac{{-5}}{\sqrt{30}}$.

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