Mathematics: Applications and Interpretation · Topic 1: Number and algebra
AHL1.11 — Sum of infinite geometric sequences
Mathematics: Applications and Interpretation · SL / HL · syllabus-mapped notes
AIAHL1.11.1
Convergence and the sum to infinity
When $|r|<1$, $S_\infty=\dfrac{u_1}{1-r}$; applications such as a bouncing ball.