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Undefined and indeterminate answers : Undefined and Indeterminate

By: Sal Khan

Why 0/0 is considered to be indeterminate

Revisiting what a function is and how we can define and visualize one.

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Solving systems of equations for the king : Solving the Troll Ridd...

By: Sal Khan, Monterey Institute for Technology and Education

Solving the system of equations visually. Now we can save the prince/princess

What happens when we have many variables but also many constraints.

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Binomial theorem : Binomial Theorem (part 2)

By: Sal Khan

Binomial Theorem and Pascal's Triangle

Exploring quadratics and higher degree polynomials. Also in-depth look at rational functions.

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Radians : Example: Radian measure and arc length

By: Sal Khan

Worked example that thinks about the relationship between an arc length and the angle that is subtended by the arc.

Videos and exercises on trigonometry. Watch the Geometry playlist first if you have trouble understanding the topics covered here.

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Unit circle definition of trigonometric functions : Trigonometry w...

By: Sal Khan

The second part of the problem of the off-track ship captain

Videos and exercises on trigonometry. Watch the Geometry playlist first if you have trouble understanding the topics covered here.

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