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OpenStudy (anonymous):
what is arctan(-2.4) rounded to 4 decimal places what is arctan(-2.4) rounded to 4 decimal places @Mathematics
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OpenStudy (anonymous):
sounds like a job for your calculator if ever there was one
OpenStudy (anonymous):
where is the arctan button my calc
OpenStudy (anonymous):
it's most likely 2nd tan(x) button.
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