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Finding Taylor Series Using Known Series and Substitution in Single-Variable Calculus

This concept covers strategies for deriving the Taylor (power) series of a function without computing derivatives from scratch, by instead manipulating already-known series through algebraic substitution, addition, and multiplication of power series. It relies on the formal definition of a Taylor series as a sum of terms x^n scaled by coefficients derived from derivatives at a point, and on closure properties of power series under linear combination, variable substitution, and polynomial multiplication. This belongs to single-variable calculus, specifically the theory of infinite series representations of functions, and it extends the foundational technique of direct differentiation taught for basic Taylor series.