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OpenStudy (anonymous):
cos(3x)=0
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OpenStudy (anonymous):
and?
OpenStudy (anonymous):
what do you want? find value of x?
OpenStudy (anonymous):
yes to find the value of x.
OpenStudy (anonymous):
cos3x=0 cos3x=cos(90+n 360) , cos(-90+n360) 3x=(90+n 360) or (-90+n360) x=(30+n120) or (-30+n120)
OpenStudy (anonymous):
where n is any integer
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OpenStudy (anonymous):
thank you!
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