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OpenStudy (anonymous):
In ΔDFE, which trigonometric ratio has the same value as sin D?
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OpenStudy (alexandervonhumboldt2):
any drawings?
OpenStudy (alexandervonhumboldt2):
cos(90-D)=sin(D)
OpenStudy (anonymous):
OpenStudy (alexandervonhumboldt2):
cosE
OpenStudy (anonymous):
THank you how did you do it to slove it ?
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OpenStudy (alexandervonhumboldt2):
cos(x)=adjacent/hypootinuse sin(x)=opposite/hypotenuse
OpenStudy (alexandervonhumboldt2):
looo at the diagram and determine which are opposite, and adjacent sides to what
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