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anonymous
 one year ago
Solve the equation in the specified interval
Secx=3 pi</x<pi
anonymous
 one year ago
Solve the equation in the specified interval Secx=3 pi</x<pi

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misty1212
 one year ago
Best ResponseYou've already chosen the best response.1start with \[\cos(x)=\frac{1}{3}\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1then comes some difficulty

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Hey! Yes I started with that

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1so now you are stuck since you don't know the answer to that

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Basically I'm stuck in this step

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1you need to use a calculator to find \[\cos^{1}(\frac{1}{3})\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1that will only give you one answer in quadrant 2 though

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440123708272:dw

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1you want the other one, it is the negative of the first one

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440123787810:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So first one is 1.91

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=arccos%281%2F3%29 yeah looks good

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok so how do I get the opposite

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1it is the negative of the first one

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440124243706:dw

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1scuse the bad picture yeah what you wrote

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok so how would you write to make it look like pi/2
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