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ksaimouli
 4 years ago
3cosx+9=7 slove for x saifoooo help
ksaimouli
 4 years ago
3cosx+9=7 slove for x saifoooo help

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[\color{red}{x}\color{blue}{\text{saifoo}}=\cos^{1}(\frac{2}{3})\]

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.0I told you how to get the solutions \[x=\cos^{1}(\frac{2}{3})+2n \pi\] Please ask me what you don't understand about how I got this? by the way n is an integer

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0looks like 131.8 degrees if you are working in degrees

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.0if you want degrees do +360 n

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.0and put your calc in degree mode for approximations

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i am making truth tables. nothing could be more boring, but i have to do it t t t f f t f f arrghhh

ksaimouli
 4 years ago
Best ResponseYou've already chosen the best response.0is i have to add 180 hhhhhhhhhh i dont know plz help

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0subtract 131.8 from 360

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0let me draw a picture

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1326938616923:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0both those places on the circle have the same first coordinate, that is the same cosine. the first one you can get from the calculator, it is131.8 the other one you get from subtracting 131.8 from 360

myininaya
 4 years ago
Best ResponseYou've already chosen the best response.0\[\cos(131.8)=\cos(131.8)=\cos(131.8+360)\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0@myininaya is that a five oclock shadow you're sporting?

ksaimouli
 4 years ago
Best ResponseYou've already chosen the best response.0ok thx so ican sub 360 for everythink like thses problems
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