All the trig I need for AP Calculus AB

S - sin & csc functions positive in Quad II. T – tan & cot functions positive in Quad III. C – cos & sec function positive in Quad IV. 30° = 60° 45° 45° sin cos tan. csc sec cot. sin cos tan. csc sec cot (0,1) (0, -1) Reference Angles ( ) ---- Positive, acute angles ................
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