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Mathematics 19 Online
OpenStudy (anonymous):

could you possibly help with this one. find the exact value of the expression tan pi/4-sin pi/6

OpenStudy (anonymous):

Using the unit circle, tan pi/4 is 1 and sin pi/6 is 1/2. So 1- 1/2 = ?

OpenStudy (anonymous):

so how do i know if pi/4 is in what quadrant

OpenStudy (anonymous):

It is in the first quadrant.

OpenStudy (anonymous):

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