The permutation symbol, also known as the Levi-Civita symbol, is defined as i = j, j = k, k = i (repeated index) +1, (i, j, k) {(1,2, 3), (2, 3, 1), (3, 1, 2)} (even permutation of (1,2,3)) -1, (i,j, k) {(1, 3, 2), (3, 2, 1), (2, 1, 3)} (odd permutation of (1,2,3) 0, Eijk Find the vector operation defined by *Hint: Use the Einstein summation convention to write out all terms in the above sum.