Recent content by seema283k

if a set A is both open and closed then it is R(set of real numbers) how we may show it in a proper way

sir please give me a good way to learn about Fourier series, trigonometrical Fourier series. explain the term by examples and by 3-d figure and imagination

how can we use property of null matrix .explain it by giving examples. please give me explanation of the theorem----if A is a null matrix & B is any matrix then I+AB is invertible iff I+BA is invertible