English: So, we define this function $G(t) = E_{n}(t) - \frac{w_{n + 1}(t)E_{n}(x)}{w_{n + 1}(x)}$,$E_{n}(x) = f(x) - P_{n}(x) = \frac{f^{(n + 1)}(\xi)}{(n + 1)!
Telugu: అందువల్ల, మేము ఈ విధిని $G(t) = E_{n}(t) - \frac{w_{n + 1}(t)E_{n}(x)}{w_{n + 1}(x)}$,$E_{n}(x) = f(x) - P_{n}(x) = \frac{f^{(n + 1)}{\xi)}{(n+ 1)}{n+ 1)!!