1.

Find vector \(\vec{c}\), if \(\vec{a}\)–\(\vec{b}\)+\(\vec{c}\)=6\(\hat{i}\)+8\(\hat{j}\) where \(\vec{a}\)=7\(\hat{i}\)+2\(\hat{j}\) and \(\vec{b}\)=4\(\hat{i}\)-5\(\hat{j}\).

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


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