If \( a=4 \hat{i}+6 \hat{j} \) and \( b=3 \hat{j}+4 \hat{k} \), then the component of \( a \) al...
If \( a=4 \hat{i}+6 \hat{j} \) and \( b=3 \hat{j}+4 \hat{k} \), then the component of \( a \) along \( b \) is
(a) \( \frac{18}{10 \sqrt{3}}(3 \hat{j}+4 \hat{k}) \)
(b) \( \frac{18}{25}(3 \hat{j}+4 \hat{k}) \)
(c) \( \frac{18}{\sqrt{3}}(3 \hat{j}+4 \hat{k}) \)
(d) \( (3 \hat{j}+4 \hat{k}) \)
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