1. Let 1n = (1; :::; 1)? 2 Rn and x = (x1; :::; xn)? 2 Rn. Simplify (a) (1n; x)[(1n 1. Let 1n = (1; :::; 1)? 2 Rn and x = (x1; :::; xn)? 2 Rn. Simplify (a) (1n; x)[(1n; x)?(1n; x)]?1(1n; x)?1n (b) (1n; x)[(1n; x)?(1n; x)]?1(1n; x)?x (c) In (1n; x)[(1n; x)?(1n; x)]?1(1n; x)?)1n (d) (In (1n; x)[(1n; x)?(1n; x)]?1(1n; x)?)x 2. With data in p103 3.14 ll...
