MATLAB: Calculating derivative of a function

Question

a=62;

b=95;

y = @(x) (3*x.^2.*sin(a*x))./(x.^2+b);

dy = diff(y)

I don't know exactly how i need to calculate the derivative correctly.

Answer 1

syms x
a=62;
b=95;
y = (3*x.^2.*sin(a*x))./(x.^2+b);
dy = diff(y)