How to simplify this product? | Moscow Middle School Math Olympiad Question | Mathematical Olympiad

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How to simplify this complicated product? In this video, we'll use a special method and basic algebra to simplify and evaluate the product of fractions.

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[Math Olympiad]

[Number Theory]

[Algebra]
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Thank you for sharing this elegant and clever solution.

slavinojunepri
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I'm now in the third year of middle school and i want to prepare for IMO, which is better, doing some hard middle school olympiad problems, or pre-study high school math to have an enough time to prepare on IMO problems directly?

abdelhakimlamnaouar
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I found that solution very funny. Thanks!

justsomeboyprobablydressed
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Why must I simplify it? It wasn't I who complicated it.

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