vectors-m

Question: If $\mathbf{a}=2\,\mathbf{i}+2\,\mathbf{j}+3\,\mathbf{k},\,\,\mathbf{b}=-\mathbf{i}+2\,\mathbf{j}+\mathbf{k}$ and $c=3\,\mathbf{i}+\mathbf{j},$ then $\mathbf{a}+t\,\mathbf{b}$ is perpendicular to c if $t=$



1) 2
2) 4
3) 6
4) 8
Solution: Explanation: No Explanation
Scalar Product Dot Product

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