DM'S Mathematics
12/04/2017
Simplifying trig expressions by using the reciprocal identities
Simplifying trig expressions by using the reciprocal identities http://www.freemathvideos.com In this video series I will show you how to simplify trigonometric expressions. We will simplify these expression to either a s...
12/04/2017
Graphing Sine and Cosine
Graphing Sine and Cosine With Different Coefficients (Amplitude and Period), Ex 1 Graphing Sine and Cosine With Different Coefficients, Ex 1. In this video, I talk about how to find the amplitude and period of a couple of functions. In the...
12/04/2017
SPECIAL RIGHT TRIANGLES PRACTICE !!
Khan Academy Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
12/04/2017
Right Triangle Trigonometry
Is the concept of the following factors :
Pythagorean Theorem : the square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides.
SOHCAHTOA : A way of remembering how to compute the sine, cosine, and tangent of an angle. SOH stands for Sine equals Opposite over Hypotenuse. CAH stands for Cosine equals Adjacent over Hypotenuse. TOA stands for Tangent equals Opposite over Adjacent.
Special Right Triangles : is a right triangle with some regular feature that makes calculations on the triangle easier, or for which simple formulas exist.
12/04/2017
Note and some examples
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