Here you will find problems for practicing. Each problem has hints coming with it that can help you if you get stuck.
Summing up series
of real numbers.
Testing convergence
of series of real numbers.
Investigating convergence
and testing absolute convergence of series of real numbers.
Convergence
of sequences and series of functions.
Region of convergence
of power series.
Taylor expansion
(expanding functions in power/Taylor series).
Summing up power series
.
Fourier series
(expanding functions in Fourier series, sine Fourier series or cosine Fourier series).