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OpenStudy (anonymous):
sin(pi/2) cos(pi/7) + cos(pi/2) sin(pi/7)
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OpenStudy (anonymous):
if i solve this can i use a calc?
OpenStudy (anonymous):
using identity sinAcosB+cosASinB=sin(A+B) the answer is sin(pi/2+pi/7) sin(9pi/14)=0.035241
OpenStudy (anonymous):
thanks!
OpenStudy (anonymous):
:-)
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