List questions from fractions

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Prove this inequality $\sum_{cyc}\frac{a}{ab+1}\geq \frac{3}{2}$

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Simple fraction , can someone help

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$\frac{a}{b}+\frac{c}{d}=\frac{a+c}{b+d}$

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Inequality $\frac{x_1^2}{x_1^2+x_2x_3}+\frac{x_2^2}{x_2^2+x_3x_4}+\cdots+\frac{x_{n-1}^2}{x_{n-1}^2+x_nx_1}+\frac{x_n^2}{x_n^2+x_1x_2}\le n-1$

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Have I made a new limit that tends to $e$?

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If $\frac{\sin x}{\sin y}= {3}$ and $\frac{\cos x}{\cos y}= \frac{1}{2}$, then find $\frac{\sin2x}{\sin2y}+\frac{\cos2x}{\cos2y}$

Published on 02 Aug 2017 - 15:22

List Question

Zero/Zero questions and perhaps faulty logic

Question trying to physically understand Algorithm run time as proportion

The limit of a sequence

What is the probability that Cathy wins?

Why are fractions "multiplied across"?

Why do decimal places "move" when multiplying or dividing decimals?

Algorithm for converting fraction into (recurring) decimal

Finding the nature of trailing decimals for a given fraction

Prove this inequality $\sum_{cyc}\frac{a}{ab+1}\geq \frac{3}{2}$

Simple fraction , can someone help

How is this equation true?

$\frac{a}{b}+\frac{c}{d}=\frac{a+c}{b+d}$

Inequality $\frac{x_1^2}{x_1^2+x_2x_3}+\frac{x_2^2}{x_2^2+x_3x_4}+\cdots+\frac{x_{n-1}^2}{x_{n-1}^2+x_nx_1}+\frac{x_n^2}{x_n^2+x_1x_2}\le n-1$

Have I made a new limit that tends to $e$?

If $\frac{\sin x}{\sin y}= {3}$ and $\frac{\cos x}{\cos y}= \frac{1}{2}$, then find $\frac{\sin2x}{\sin2y}+\frac{\cos2x}{\cos2y}$

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