Verify that each given function is a solution of the differential equation (each 10 pts).1. y"-4y = 0;1) y(t) = e2t,2) y(t) = cosht2. y" + 2y - 3y= 0;1) y(t) = e-31,2) y(t) = et3. 12y" + 5ty' + 4y = 0, t> 0; 1) y(t) = t2,2) y(t) = t2n t4. y" + y = sect; 0