chemistry definition   5 videos

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  The Definitions of Sine and Cosine

  Precalculus Trigonometric Functions

  How we define sine and cosine for all angle measures using the unit circle.

  sine cosine right triangle definitions of sine and cosine angles in standard position unit circle definitions of sine and cosine
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  Logarithmic Functions

  Precalculus Exponential and Logarithmic Functions

  How to graph logarithmic functions.

  logarithmic functions exponential functions graphs of logarithmic functions definition of a logarithm
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  The Number e and the Natural Logarithm

  Precalculus Exponential and Logarithmic Functions

  How the number e is defined.

  exponential functions graphing exponential functions tangent lines the definition of e
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  Evaluating Sine and Cosine at Special Acute Angles

  Precalculus Trigonometric Functions

  How do we measure sine and cosine of pi/4?

  sine cosine unit circle definitions of sine and cosine angles in standard position
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  Evaluating Sine and Cosine at Other Special Angles

  Precalculus Trigonometric Functions

  How to measure the sine and cosine of 150.

  sine cosine unit circle definitions of sine and cosine angles in standard position reference angles