Task: Translation
Input (Tagalog): Tagalog sentence: Ito iimbestiga ng paggamit ng ilang mga functional equation upang kalkulahin ang differentials ng logarithmic function trigonometrical at pati na rin ang may dalawang pangalan pagpapalawak at Taylor formula.
Output (English): It investigates the use of some functional equations in order to calculate the differentials of logarithmic and trigonometrical functions as well as the binomial expansion and Taylor formula.