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Bài tập 20b trang 55

Author:TANG Minh Dung

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Visualizing the Pythagorean Identity with Sine and Cosine
Area Between Two Curves
GGB is Awesome!
Billard V5.2 and V6
Average Value of a Function

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Triangle of time
Side Angle Side
Rotate, reflect, translate triangles UPDATED test
Ellipse: Magic Sum = ?
Four Parallelogram Properties

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Expected Value
Piecewise Functions
Ellipse
Differential Equation
Rotation

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