Concept:Use vector dot and cross product rules for unit vectors i^,j^,k^.Explanation:We know:i^×k^=−j^, so j^⋅(i^×k^)=−1.j^×j^=0, so i^⋅(j^×j^)=0.j^×i^=−k^, so k^⋅(j^×i^)=−1.k^×j^=−i^, so i^⋅(k^×j^)=−1.Therefore, total value is:−1+0−1−1=−3Answer:−3