A.3: Trigonometry — Definitions

CLP-2 Integral Calculus · LibreTexts

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    From LibreTexts, under CC BY-NC-SA 4.0, as the source states it; its equations are written in TeX, which the PDF shows typeset. This page at LibreTexts.

    Illustration
    \[
    \begin{array}{rlcrl}
    \sin\theta &= \dfrac{\text{opposite}}{\text{hypotenuse}} & \qquad & \csc \theta &= \dfrac{1}{\sin\theta} \\
    \cos\theta &= \dfrac{\text{adjacent}}{\text{hypotenuse}} & \qquad & \sec \theta &= \dfrac{1}{\cos\theta} \\
    \tan\theta &= \dfrac{\text{opposite}}{\text{adjacent}} & \qquad & \cot \theta &= \dfrac{1}{\tan\theta}
    \end{array}
    \nonumber \]

    This page titled A.3: Trigonometry — Definitions was last modified on Fri, 03 Dec 2021 15:26:25 GMT and is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Joel Feldman, Andrew Rechnitzer and Elyse Yeager via source content that was edited to the style and standards of the LibreTexts platform.