Part 3. Function recovery by its derivative: Learning. allowance, exit data unknown. — 66 s. The manual contains 168 tasks on the following topics:Original and indefinite integral. Table integrals . Linear transformations of a variable. Decomposition method. Conversion of sub-integral expressions. Variable replacement method. Method of integration by parts. Integration of rational functions. Classical substitutions, or "rationalization" of integrals . Different tasks about indefinite integrals. First order differential equations. Equations with divisible variables. Homogeneous Equations . Linear Equations. Variation method of constant. Difficulty in making differential equations. Access to the Integrated Area . Complex Exhibitor . Complex Differential Equations . Linear equations of the second order . Factorization of differential operators. Free Oscillation Formulas . Forced Oscillation Formulas . One-dimensional dynamical systems. Phase portraits of dynamic systems on the plane