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OpenStudy (anonymous):
express as a single fraction the exact value of sin 75
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OpenStudy (anonymous):
The last question I answered for you was wrong
OpenStudy (anonymous):
You should be able to correct the mistake now though, as you ahve seen the process
OpenStudy (mertsj):
sin75=sin(45+30) Now use the formula for sin(x+y)
OpenStudy (anonymous):
what formula is that?
OpenStudy (mertsj):
Don't you have a book?
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OpenStudy (mertsj):
sin(x+y)=sinxcosy+cosxsiny
OpenStudy (anonymous):
nvm i got it thanks
OpenStudy (mertsj):
yw
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