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OpenStudy (anonymous):
what is arccos(6/13)?
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OpenStudy (anonymous):
Depends, are you looking for an answer including pi? e.g radians
OpenStudy (anonymous):
no degrees would be great @hopelovelift
OpenStudy (anonymous):
Just use a calculator then :D arccos= cos^-1 (inverse cos) arccos(6/13)=62.5 3.s.f or 1d.p
OpenStudy (anonymous):
yeah but what if I'd like to keep it as an exact number? or is that too hard? @hopelovelift
OpenStudy (anonymous):
Umm if you mean without rounding I guess this will be the answer 62.5135737496 degrees.
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OpenStudy (anonymous):
It would make sense if you were looking for an answer in radians. E.g 3pi/4 I don't think you can get a 'exact answer' with degrees
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