What is the component of \( (3 \hat{i}+4 \hat{j}) \) along \( (\hat...

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What is the component of \( (3 \hat{i}+4 \hat{j}) \) along \( (\hat{i}+\hat{j}) \) ?
(1) \( \frac{1}{2}(\hat{j}+\hat{i}) \)
(2) \( \frac{3}{2}(\hat{j}+\hat{i}) \)
(3) \( \frac{5}{2}(\hat{j}+\hat{i}) \)
(4) \( \frac{7}{2}(\hat{j}+\hat{i}) \)
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