Home/Calculus II/Indefinite integral and properties/Checking an antiderivativeSection 2.3Checking an antiderivativeTo check an answer F(x)+CF(x)+CF(x)+C, we differentiate F(x)F(x)F(x). The answer is correct ifFormulaCopy LaTeXF′(x)=f(x)F'(x)=f(x)F′(x)=f(x)View detail →on each interval of the domain considered.