KcetVector AlgebraKCET 2018MCQ+1 / -02018If $\vec{a}$ and $\vec{b}$ are mutually perpendicular unit vectors, then $(3 \vec{a}+2 \vec{b}) \cdot(5 \vec{a}-6 \vec{b})$ is equal toA5B3C6D12Check AnswerClear SelectionReveal AnswerShow Explanation
