Use the substitution u=6−exu = 6 - e^xu=6−ex to find ∫0ln2ex6−exdx\displaystyle \int_0^{\ln 2} \frac{e^x}{6 - e^x} dx∫0ln26−exexdx
95 exam-style questions on OCR A Level Maths 1.8.8 Integration by substitution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.