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OpenStudy (anonymous):
FIND THE VALUE OF: 75 degrees In trigonometry ADDITION AND SUBTRACTION IDENTITIES
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OpenStudy (anonymous):
@ybarrap
OpenStudy (anonymous):
@mustafa2014
OpenStudy (anonymous):
sin or cos?
OpenStudy (anonymous):
My bad
OpenStudy (anonymous):
Cos
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OpenStudy (ybarrap):
cos(75)=sin(15), which you found in the previous problem. |dw:1391317737688:dw|
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