The moment of force F̄=2 i + j +2 k acting at a point - i +2 j + k about the point 3 i + j +4 k is given by

The moment of force $\displaystyle \overline{\mathrm{F}}=2 \hat{\mathrm{i}}+\hat{\mathrm{j}}+2 \hat{\mathrm{k}}$ acting at a point $\displaystyle -\hat{\mathrm{i}}+2 \hat{\mathrm{j}}+\hat{\mathrm{k}}$ about the point $\displaystyle 3 \hat{i}+\hat{j}+4 \hat{k}$ is given by