Equation Problem

主題：等式

Two bike riders, x and y both start at 2pm riding towards each other from 40km apart. x rides at 30km an hour, y at 20km an hour. If they meet after t hours, find when and where they meet. http://dldg-2012.blogspot.com.au

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Tessellation 1
Equation of a Circle
Pi Guy3
Fabry-Perot Interferometer

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圓
函數
對數函數
幾何分布
微積分

Equation Problem

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