PLEASE HELPE ME SOLVE THESE QUESTIONS BY USING MATLAB.

9. The following problem spans several questions. First define f(x)2 symbolically. Assign to f(x) 10. Evaluate f(3) +f (3). Assign to pio. 11. Evaluate f"(-20)- 2f(2). Assign to pi1 12. Evaluate [2x +3)f(x). Assign to p12. 13. Evaluate and simplify 3x + 4+ (2 5)f() dx. Assign to p13. 14. The following problem spans several questions. First define 1+7zr2 +7x 6a4 with a function handle (not symbolically!) Assign to g. 15. Evaluate and simplify (wrap in simplify please) g (34 ). Assign to p15. 16. Evaluate ) (2). Note that the 2 is plugged in, not multiplied. Assign to p16. 17. Evaluate J008zg(Ar 7) dz. Assign to p17. 18. Solve the differential equation y't -9t+ 8+e". Assign to p18. 19. Suppose a symbolically defined h(t) satisfies the initial value problem h'(t)+9cost h(t) with h(7)0 Use dsolve wrapped in subs to find h(0). Assign to p19