Integration by Substitution Calculator

Solve integrals of the form ∫ f(g(x)) dx using the u-substitution method, with step-by-step explanations.


Input Instructions

This calculator uses the standard u-substitution technique taught in calculus. Please follow the input rules below.

Examples you can enter:
  • 2x*sin(x^2)
  • cos(3x+1)
  • 1/(3x+1)
  • exp(x^2)*2x
Do not include ∫ or dx.

Examples:
  • u = x^2
  • u = 3x + 1
  • u = sin(x)
Choose u so that its derivative appears in the integrand.