In each of 11 through 16, verify that the given functions are solutions of thedifferential equation, and determine their Wronskian.y(4) + y = 0; 1, t, cost, sin t

L1 - 5 Absolute Value Def. If a is a real number, |a| 0 ▯ a ≥ 0 so that |a| = a< 0 x ex. If x ▯,ndanxeinr f(x)= |x|. x x< 0 = |x| x>...