Question

If f(x)=e^x-(x^2)/2, then find the value of f(4)-f(0).

Answer 1

simply input x=4 into the function and then x=0 in the function separately and minus the result of x=4 from the result of x=0

Answer 2

given f(x)=e^x-(x^2/2
so now f(4)=e^4-4^2/2
=e^4-16/2
=>e^4-8

and now
f(0)=e^0-0^2/2
=1-0
=1
so f(4)-f(0)=e^4-8-1
=e^4-9