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Consider the curve defied by the equation y+cosy = x +1 for 0< or to equal y < or to equal 2pi
 one year ago
 one year ago
Consider the curve defied by the equation y+cosy = x +1 for 0< or to equal y < or to equal 2pi
 one year ago
 one year ago

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UmangiasdBest ResponseYou've already chosen the best response.0
Okay, i considered it, now what?
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
a.) Find dy/dx in terms of y. b.) Write an equation for each vertical tangent to the curve c.) Find d^2y/dx^2 in terms of y.
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
wouldn't be like this? dw:1358131334593:dw
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
sorry about my bad handwriting my hands are cold :P
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
no it wont be like that cause you with with respect to Y
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
ok so part a.) is just 1siny=x'
 one year ago

dumbcowBest ResponseYou've already chosen the best response.0
they are looking for dy/dx or y' derivative wrt x BUT in terms of y
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
oh derp.... i did it wrong
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
so was my technique correct? :D
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
k so y did it not show both images.... the 1st part wwas expanded 2nd part is simplified
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
wait how did u get that?
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
this program some times deletes my images or it doesnt appear for whatever reason
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
how does x cancel from the other side?
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
when/where did i cancel a x?
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
from the right original side of equation (x+1)
 one year ago

dumbcowBest ResponseYou've already chosen the best response.0
btw here is graph of curve http://www.wolframalpha.com/input/?i=y+%2B+cos%28y%29+%3D+x%2B1+%2C+from+x%3D0+to+2pi%2C+from+y%3D0+to+2pi
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
oh ok i think i see why u canceled the variables on the right side of the equation :)
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
so 1/(1siny) is part a.)?
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
the x didnt cancel the derivative of x+1 = just 1 since its wrt x
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
and yes thats your part a
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
ok how do i do part b.)
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
so vertical asymptotes is what makes the bottom of a fraction = 0
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
but we need the vertical asymptote so we needa find the x value so we put the equation in the form of x = #
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
so now we use the original equation and use that y value to solve for the x
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
how did u get 1=siny
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
so the vertical graph is x= (pi  2)/ 2
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
i got 1=siny because it was 1st 1siny= 0 i just moved it over
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
dw:1358140649853:dw sorry im bad at spelling
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
ok so part c is finding the 2nd derivative.... this will be fun
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
so part b.) is (pi 2)/2
 one year ago

Goten77Best ResponseYou've already chosen the best response.1
this is basically the quotient rule + implicint differentation + production rule + chain rule THEN use that negative .... you dont have to simplify unless ur told to.. which i dont think u can
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
so cosy/(1siny)^2 is the answer? :)
 one year ago

lilfayfayBest ResponseYou've already chosen the best response.0
can you help me with 1 more pls? :)
 one year ago
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