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OpenStudy (anonymous):
what is cos 60?
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OpenStudy (p0sitr0n):
in degrees or in radians?
OpenStudy (anonymous):
degrees
OpenStudy (p0sitr0n):
degrees: convert to radians -> 60deg = pi/3 rad then cos(pi/3) is 1/2
OpenStudy (anonymous):
thank you ! :)
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