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Chapter 4-6: Sin, Cos, and Tan Functions. Trig Functions:. Graphs of trig functions are the “unwrapping” of the circle in the coordinate plane. The sine function is all the y-coordinates all the way around the circle. Sine Function:. Sine Function.

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Chapter 4-6: Sin, Cos, and Tan Functions


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    1. Chapter 4-6: Sin, Cos, and Tan Functions

    2. Trig Functions: Graphs of trig functions are the “unwrapping” of the circle in the coordinate plane. The sine function is all the y-coordinates all the way around the circle.

    3. Sine Function: Sine Function This is an ODD function: A function with 180° symmetry about the origin. 1 -2π -3π/2 -π -π/2 π/2 π 3π/2 2π -1 Y-intercept? x-intercepts? Period? Max and Min? Domain? Range?

    4. Cosine Function: Question: Does anyone notice any relationship between the graphs of the Sine and Cosine Functions? This is an EVEN function: A function with Reflection symmetry over the y-axis. 1 -2π -3π/2 -π -π/2 π/2 π 3π/2 2π -1 Max and Min? Domain? Range? Y-intercept? X-intercepts? Period?

    5. Tangent Function: Question: Is this an Even or an Odd Function? Or Neither??? 1 -2π -3π/2 -π -π/2 π/2 π 3π/2 2π -1 Max and Min? Domain? Range? Y-intercept? X-intercepts? Period?