b / | | / 1 2 \ | \f *x + f *x/ dx | / a
Integral(f^1*x + f^2*x, (x, a, b))
Integrate term-by-term:
The integral of a constant times a function is the constant times the integral of the function:
The integral of is when :
So, the result is:
The integral of a constant times a function is the constant times the integral of the function:
The integral of is when :
So, the result is:
The result is:
Now simplify:
Add the constant of integration:
The answer is:
/ | 2 2 2 | / 1 2 \ f*x f *x | \f *x + f *x/ dx = C + ---- + ----- | 2 2 /
/ 2\ / 2\ 2 |f f | 2 |f f | b *|- + --| - a *|- + --| \2 2 / \2 2 /
=
/ 2\ / 2\ 2 |f f | 2 |f f | b *|- + --| - a *|- + --| \2 2 / \2 2 /
b^2*(f/2 + f^2/2) - a^2*(f/2 + f^2/2)
Use the examples entering the upper and lower limits of integration.