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pre-calculus

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Write the first expression in terms of the second if the terminal point determined by the t is in the given quadrant:

sin t, cos t; quadrant 2

  • pre-calculus - ,

    sin^2 t = 1 - cos^2 t
    sin t = +/- sqrt (1-cos^2 t)
    in quadrant 2, sin t is + so use + sign

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