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OpenStudy (anonymous):
What is sin 7π/4 ? –2√2 2√2 –3√2 –12
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OpenStudy (anonymous):
i dont know how to find one
OpenStudy (anonymous):
7 * 3.14 * 4
OpenStudy (anonymous):
is it 7π /4 or 7π*4
OpenStudy (anonymous):
7 pi over 4
OpenStudy (campbell_st):
here is the diagram |dw:1435959707188:dw| just use opposite /hypotenuse
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