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A series of calculus lectures and solutions.
Defining a plane in R3 with a point and normal vector
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This video covers the basics of 2 and 3 dimensional vector spaces.
An Introduction to the Dot Product
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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