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GC 5.1.1 pt 1 Intro to Sine Cosine trigonometry ratios
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Video duration: 596 seconds

Go through an example using a 2 different size slope triangle on the same line to show how other ratios of sides have the same value for both triangles and the same angle. pt 2 brings the basics together.

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AC 8.1.2 pt 2 Factoring Quadratics w Diamonds and Rectangles
Posted by: djfreeman1

Video duration: 614 seconds

This video shows the step by step process of factoring a quadratic with a generic rectangle and diamond style problem. It is a lot of steps but the steps are easier than other methods I have used. Dealing with special cases and different problems you might encounter will be in the next few sections.

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	AC 8.1.2 pt1 Factoring Quadratics using Generic Rectangles Posted by: djfreeman1 Video duration: 425 seconds This is pt 1 and does a quick review of generic rectangles and diamond problems. Part 2 will show how to use them to factor a quadratic. Related: algebra, binomial, diamond, djfreeman1, factor, quadratic, rectangle

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