Question

If $\vec{a}=2\vec{i}+2\vec{j}+3\vec{k},\vec{b}=\vec{i}+2\vec{j}+\vec{k}\;and\;\vec{c}=3\vec{i}+\vec{j}$ are such that $\vec{a}+\gamma\vec{b}$ is perpendicular to $\vec{c}$ then determine the value of $\gamma$?

• A. 3
• B. 0
• C. 4
• D. 8

Answer 1

Answer: (D)

8

Answer 2

The correct answer is(D): 8