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anonymous
 one year ago
Write the following as an algebriac expression in "x"
cot(arccos(3x)), 0 ≤ x ≤ 1/3
anonymous
 one year ago
Write the following as an algebriac expression in "x" cot(arccos(3x)), 0 ≤ x ≤ 1/3

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This problem makes my head hurt :( lol

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1this is really not that bad at all first step: draw a triangle with some angle \(\theta\) labelled next step, since \[\cos(\theta)=3x\] put a \(3x\) on the "adjacent" side and make the hypotenuse 1

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434129152248:dw

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1there is a picture of an angle whose cosine is \(3x\) what you need is the "opposite" side which you find via pythagoras

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1let me know what you get it should have a square root in it

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1yes although \[\sqrt{19x^2}\] looks neater

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1now you want the cotangent of that angle, which is "adjacent over opposite" so you are pretty much done, just write it i

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yeah I got it form here, you just made that so easy it's ridiculous. Thank you so much

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1it is ridiculously easy if you know what you are doing hope your head does not hurt anymore \[\color\magenta\heartsuit\]
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