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anonymous
 4 years ago
arccos(cos(94pi/59))
anonymous
 4 years ago
arccos(cos(94pi/59))

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0HINT: \[\cos^{1} (\cos x) = x\]

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

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

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0We 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

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Glad to see I was thinking about that correctly.

zepdrix
 4 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

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