Trigonometry 2. The curse of sine, cosine and tangent. Identity.

34,207 views

Pavel Maslov

Published on Sep 15, 2017
About :

The second video on trigonometry. We will figure out what sine, cosine and tangent are on a unit circle. We will learn to determine their signs by quarters and find values ​​at the intersection points of the circle. We will learn the formula of the main trigonometric identity and solve a couple of numbers from the Unified State Exam with it. Part 1. Trigonometry - Beginning • Trigonometry. Beginning. The number PI and the unit... Link to the drawing: https://www.geogebra.org/m/y9D9H4cN Assignments for independent preparation: https://yadi.sk/i/RIYsRDgu3Mu9Hd Answers: https://yadi.sk/i/bxBjNbjq3NUQbH Ask questions in the comments! You can support the channel here: http://www.donationalerts.ru/r/pavelm...

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