Let vector(a) be a vector perpendicular to the vectors vector (a) = (i + j - k) and vector (b) = (i + 2j + k)

Question

Let \(\overset{\rightarrow}{a}\) be a vector perpendicular to the vectors

\(\overset{\rightarrow}{a}=\hat{i}+\hat{j}-\hat{k}\) and \(\overset{\rightarrow}{b}=\hat{i}+2\hat{j}+\hat{k}\)

If \(\overset{\rightarrow}{c}=(\hat{i}+\hat{j}+3\hat{k})=8\) then the value of \(\overset{\rightarrow}{c}.(\overset{\rightarrow}{a}\times \overset{\rightarrow}{b})\) is equal to ______.

Answer 1

Answer is (28)