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Mathematics 14 Online
OpenStudy (anonymous):

Which trigonometric expression has a negative value? sin2π5 sin5π4 sin2π3 sin5π6

OpenStudy (marihelenh):

It would be the one where the top number is larger than the bottom because then it has passed the 180 degrees on the graph and enters into the negative numbers.

OpenStudy (anonymous):

idk the answer

OpenStudy (anonymous):

a b c or d ?

OpenStudy (marihelenh):

5 is bigger than 4, so it would be sin5(pi)4

OpenStudy (anonymous):

thanks man

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