M An HL1 blue 9A area of triangle, area of segment of a circle

Analysis Higher Level Unit 3: Triangle trigonometry, trigonometric functions lesson 3b

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Arc length, sector area, trig ratios on a circle of arbitrary radius:  M An HL1 blue 8BD arc length, sector ...

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The law of sines, including the ambiguous case:  M An HL1 blue 9C the law of sines