grandes-ecoles 2019 Q14

grandes-ecoles · France · centrale-maths2__pc Taylor series Identify a closed-form function from its Taylor series
Recall, without justification, the expression of $t^{\prime}$ as a function of $t$, where $t(x) = \tan(x)$.
Recall, without justification, the expression of $t^{\prime}$ as a function of $t$, where $t(x) = \tan(x)$.