Asked by Molly
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
sin t, cos t; quadrant 2
Answers
Answered by
Damon
sin^2 t = 1 - cos^2 t
sin t = +/- sqrt (1-cos^2 t)
in quadrant 2, sin t is + so use + sign
sin t = +/- sqrt (1-cos^2 t)
in quadrant 2, sin t is + so use + sign
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