Intro to Trigonometric Identities - part 1
In this video I go through a brief introduction to trig identities. I look at well known identities such as sin^x + cos^x = 1, then go through some example problems. Part 2: • Secant, Cosecant and Cotangent - (2 of 4: ...
practice problems: http://bit.ly/2ITWDYL
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