Double Angle Identities & Formulas of Sin, Cos & Tan - Trigonometry
18:16
YouTubeThe Organic Chemistry Tutor
Double Angle Identities & Formulas of Sin, Cos & Tan - Trigonometry
This trigonometry video tutorial provides a basic introduction to the double angle identities of sine, cosine, and tangent. It explains how to derive the double angle formulas from the sum and difference identities of sin, cos, and tan and how to use the double angle formulas to find the exact value of trigonometric expressions using right ...
已浏览 79万 次2017年10月19日
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