Index - topics beginning with I.
| Topic | Sub-topic |
| Identities. | Quadratic. |
| Trigonometric. | |
| Trig - Summary of strategies for proofs. | |
| Indices. | Algebra main page. |
| Indirect variation. | Hyperbolic models. |
| Induction, Mathematical. | Videos and questions on series type, divisibiity and miscellaneous inductions. |
| Inequalities. | Algebra. |
| Algebra - harder inequalities. | |
| Integration (Anti-differentiation). |
Basic functions. |
| Exponential functions. | |
| Logarithmic functions. | |
| Trigonometric functions. | |
| Differentiate - hence find. | |
| Interest (on money). | Simple interest. |
| Compound interest. | |
| Inverse functions. | Algebra. |
| Trigonometric functions. | |
| Irrational numbers. | The concept and manipulation of irrationals. |