USE MATLAB PLEASE Problem $5,$ Consider the harmonic function

$y=2e^{-x}sin3x^2,0x5$

Invesngate the validity of the numerical differentiation process by considering two different values for the number of points in the domain: $($a$)21,$ and $($b$)501.$

Plot the exact derivative of function $y$ vs approximate $($i$.$e numerically determined$)$ dervative of function $y$ for both casses

NOTE: When muitrphyg vecrors eiement by element you must use dot asterisk $({?}^{**})$ symbol ustead of just astenisk $({?}^{**}.$ Also when exponentianig vector element by element you need to use dot$-$cares $($