1.

Find vector \(\vec{b}\), if \(\vec{a}+\vec{b}\)+\(\vec{c}\)=8\(\hat{i}\)+2\(\hat{j}\) where \(\vec{a}\)=\(\hat{i}\)-6\(\hat{j}\) and \(\vec{c}\)=3\(\hat{i}\)+7\(\hat{j}\).

A. 4\(\hat{i}\)+4\(\hat{j}\)
B. \(\hat{i}\)+4\(\hat{j}\)
C. 4\(\hat{i}\)–\(\hat{j}\)
D. 4\(\hat{i}\)+\(\hat{j}\)
Answer» E.


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