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Mathematics 9 Online
OpenStudy (anonymous):

Find the exact value of the expression. sin-1 (0.5) a. pi/6 b. pi/3 c. 7pi/3 d. 7pi/6

OpenStudy (dumbcow):

Unit Circle :)

OpenStudy (campbell_st):

here is an exact ratio triangle |dw:1353131267141:dw| just work it out using sin = Opp/hyp

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