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AP EAMCET · Maths · Definite Integration

\(\lim _{x \rightarrow \infty} \frac{1^{77}+2^{77}+\ldots+n^{77}}{n^{78}}=\)

  1. A \(\frac{1}{77}\)
  2. B 1
  3. C 76
  4. D \(\frac{1}{78}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\frac{1}{78}\)

Step-by-step Solution

Detailed explanation

\begin{aligned} & \text { } \lim _{n \rightarrow \infty} \frac{1^{77}+2^{77}+\ldots+n^{77}}{n^{78}} \\ & =\lim _{n \rightarrow \infty} \frac{1}{n}\left(\frac{1^{77}}{n^{77}}+\frac{2^{77}}{n^{77}}+\ldots+\frac{n^{77}}{n^{77}}\right) \\ & =\lim _{n \rightarrow \infty} \frac{1}{n}…