This 15-minute video lesson provides more on multiplying matrices.
- Author:
- Khan, Salman
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A demonstration of how to solve an advanced ratio problem with algebra.
- Author:
- Khan, Salman
This is a presentation of slightly harder percent problems.
- Author:
- Khan, Salman
This 3-minute video lesson looks at more rational exponents and exponent laws.
- Author:
- Khan, Salman
This 4-minute video lesson explains how to multiply and simplify a radical expression.
- Author:
- Khan, Salman
This 3-minute video lesson explains how to multiply and simplify a radical expression.
- Author:
- Khan, Salman
This shows how a mathematician can define their own set of operators.
- Author:
- Khan, Salman
This lesson introductes systems of equations.
- Author:
- Khan, Salman
A word problem involving 3 people overtaking each other at different rates.
- Author:
- Khan, Salman
This lesson explains how a parabola is the locus of all points equidistant from a point and a line.
- Author:
- Khan, Salman
This lesson explains how a parabola is the locus of all points equidistant from a point and a line. [Algebra: Lesson 66 of 86]
- Author:
- Khan, Salman
An introduction to partial fraction expansion.
- Author:
- Khan, Salman
Presentation of a more complex problem of partial fraction expansion.
- Author:
- Khan, Salman
This is a demonstration of how to deal with repeated factors.
- Author:
- Khan, Salman
How to solve a word problem involving a train passing a bike.
- Author:
- Khan, Salman
Another word problem involving trains passing at different rates.
- Author:
- Khan, Salman
Proofs of the logarithm properties: A(log B) = log (B^A) and log A - log B = log (A/B)
- Author:
- Khan, Salman
A proof of the logarithm property: log a + lob b = log ab.
- Author:
- Khan, Salman