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Mathematics 15 Online
OpenStudy (anonymous):

Will fan and medal sin^-1(-1)? I thought it was 3pi/2 but my book says the answer is pi/2

OpenStudy (perl):

your book has a typo ,

OpenStudy (perl):

|dw:1426958019094:dw|

OpenStudy (perl):

|dw:1426958129767:dw|

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