If a = 7 i + j - 4 k and b = 2 i - 6 j + 3 k , then find projecti… - Vidyadip

Question

$\text{If} \overrightarrow{\text{a}} = 7\hat{\text{i}} + \hat{\text{j}} - 4\hat{\text{k}}$ and $\overrightarrow{\text{b}} = 2\hat{\text{i}} - 6\hat{\text{j}} + 3\hat{\text{k}},$ then find projection of $\overrightarrow{\text{a}}\text{on} \overrightarrow{\text{b}}.$

✓

Answer

$\text{p} = \frac{\overrightarrow{a}. \overrightarrow{b}}{\overrightarrow{|b}|} = \frac{8}{7}$

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