• 2021 April(Z04) Math Question 17

    Trigonometry

    - Pythagorean Theorem & sin cos tan

    Trigonometry for Right Triangles
    Choice D
    sin={Base}{Hyp}sin=\frac\{Base\}\{Hyp\}

    Here we have

    Base=7andHyp=9Base=7 \quad and\quad Hyp=9

    Therefore

    sinA={7}{9}sinA=\frac\{7\}\{9\}

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