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goongmax
 3 years ago
arccos(cos(94pi/59))
goongmax
 3 years ago
arccos(cos(94pi/59))

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micahwood50
 3 years ago
Best ResponseYou've already chosen the best response.1HINT: \[\cos^{1} (\cos x) = x\]

goongmax
 3 years ago
Best ResponseYou've already chosen the best response.0arccos(cos(94pi/59)) = 94pi/59

goongmax
 3 years ago
Best ResponseYou've already chosen the best response.094pi/59 is in the 4th quad. so... 94pi/59 pi = 35/59 pi

TransendentialPI
 3 years ago
Best ResponseYou've already chosen the best response.1We know the range of the arc cosine function is limited to [0,pi], right? We know that 90pi/59 is pretty close to 90pi/60 or 3pi/2. The cos(3pi/2) is close to 0 The arccos(0) is pi/2 The reference angle for the 90pi/59 would be in quad 4 and measure 28/59 pi. SO I'm thiniking the answer to the problem would be 28pi/59dw:1351301172847:dw

TransendentialPI
 3 years ago
Best ResponseYou've already chosen the best response.1Glad to see I was thinking about that correctly.

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.2Oh sorry trans.. you were typing really long :C wasn't sure if you were going to paste anything. Didn't mean to step on yer toes there XD

goongmax
 3 years ago
Best ResponseYou've already chosen the best response.0OMG wrong lol. its 2pi  94/59pi
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