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OpenStudy (anonymous):
Hey, just wanted to make sure I got the right answer on my test because my teacher and I are at odds...find the exact value of arccos (sin (7pi/6)). Now the answer that I got was 2pi/3; however, my teacher says it's 5pi/6??? Any insight
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OpenStudy (anonymous):
I got 2pi/3 as well. by hand and with my TI NSpire /shrug
OpenStudy (anonymous):
Thank you! Just needed that Assurance ;) Seems like she might need a lesson or two
OpenStudy (anonymous):
lol or something. if you graph it on a calc as well it comes out as 2.0944 good luck
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