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p { margin-bottom: 0.25cm; line-height: 120%; } Recall that a geometric progression is a sequence (a_n) defined as follows a_1 = a a_n = a * r^(n - 1) for all integers n > 1 where a and r are some fixed n...

Forming questions can be difficult because in French they do not have an equivalent of the auxiliary 'do' which we have in English and use for asking questions e.g. do you play rugby? In French, there are th...

The chain rule is incredibly useful when differentiating compositions of funcions. Until now you have really only met dy/dx as your derivative. By imagining dy/dx as a fraction, you can transform it into som...

If the verb avere is in a compound past tense (passato prossimo/trapassato prossimo) and is preceded by a direct object pronoun (pronome diretto-mi, ti, lo, la, li, le) the verb avere must agree. For examle,...

The subjunctive is a mood which is usually used to express uncertainty, doubt and feelings as opposed to the indicative mood which is used to demonstrate certainty. For example, je sais que Charles va au res...