Khan Academy Static

u-substitution is an extremely useful technique. Harnessing the power of the chain rule, it allows us to define a new variable (common denoted by the letter u) as a function of x, and obtain a new expression which is (hopefully) easier to integrate.

5735_u_substitution_with_ln_x_.html

5737_u_substitution_and_back_substitution.html

5733_u_substitution_example_2.html

5739_Doing_u_substitution_twice.html

5732_u_substitution.html

5736__2_ln_x_x_antiderivative_example.html

5734_u_substitution_example_3.html

5738_u_substitution_with_exponential_function.html