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• 30 Give a concrete sequence of rationals which converges to an irrational number and vice versa.
• 23 How to set password for pdf files?
• 22 $\log_2 13$ is irrational
• 12 "Advice to young mathematicians"
• 10 $L=\lim_{x\to\infty}(f(x)+f'(x))$ exists . Which of the following statements is\are correct?
• 8 Find $\lim\frac{1}{\sqrt{n}}\left(\frac{1}{\sqrt{1}+\sqrt{3}}+\frac{1}{\sqrt{3}+\sqrt{5}}+\ldots+\frac{1}{\sqrt{2n-1}+\sqrt{2n+1}}\right)$
• 7 Find, $\sum_{n=-\infty}^\infty f(n)$
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