Please do it on matlab. Only need number 2, 4 and 5. Thanks

Solve the following differential equations I. [2 pts] 'a-ay 2 12 pts)dy - ay 3. [2 pts] dy = ay with the condition y(0) = 5 4. [3 pts] diy dt dt2 dt y- a' y with two conditions, y(o) - b and y (o) dt2