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Mathematics 21 Online
OpenStudy (anonymous):

tan theta=3/4 is in quadrant 3 find sin theta

OpenStudy (anonymous):

you are looking at the mother of all right triangles, a 3 - 4 - 5 right triangle |dw:1416534919759:dw|

OpenStudy (anonymous):

sine is opposite over hypotenuse, and since you are in quadrant 3, sine is negative

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