1.

If \(\vec{a}\)=9\(\hat{i}\)-2\(\hat{j}\)+7\(\hat{k}\), \(\vec{b}\)=5\(\hat{i}\)+\(\hat{j}\)-3\(\hat{k}\), find \(\vec{a}+\vec{b}\).

A. \(\hat{i}\)–\(\hat{j}\)+4\(\hat{k}\)
B. 14\(\hat{i}\)–\(\hat{j}\)+4\(\hat{k}\)
C. 14\(\hat{i}\)-3\(\hat{j}\)+4\(\hat{k}\)
D. 14\(\hat{i}\)–\(\hat{j}\)+9\(\hat{k}\)
Answer» C.


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