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Azureilai
 one year ago
If f(x)=x^5+x^3+x, what is the inverse of f(x)? I am stuck on the fact that there are three x's on the right side and when I try to factor I can't factor anything but one y out. (I'm using xy substitution method) Any hints would be appreciated thanks.
Azureilai
 one year ago
If f(x)=x^5+x^3+x, what is the inverse of f(x)? I am stuck on the fact that there are three x's on the right side and when I try to factor I can't factor anything but one y out. (I'm using xy substitution method) Any hints would be appreciated thanks.

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ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3may i knw why do you want to find the inverse ?

Azureilai
 one year ago
Best ResponseYou've already chosen the best response.1It is extra practice I'm doing because I want to review some precal stuff before calculus.

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3i don't see any easy way to find the inverse.. could you provide more context of the problem and maybe post the actual complete question if psble

geerky42
 one year ago
Best ResponseYou've already chosen the best response.0Did you come up this question yourself?

Azureilai
 one year ago
Best ResponseYou've already chosen the best response.1Ok. The actual question gives f(x), but it asks for f\[f ^{1}(3)\] and \[f(f ^{1}(2))\]. No I didn't come up with it myself. It was in my book for the "before calculus" section.

Azureilai
 one year ago
Best ResponseYou've already chosen the best response.1So far I got \[x=y(y^{4}+y^{2}+1)\] and I don't know where to go from there.

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1solve \(x^5+x^3+x = 3\) and you'll get the inverse \(f^{−1}(3)\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3actually you don't need to do any work here just notice that \(f\) eats \(f^{1}\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3\[\require{cancel}\large{f(f^{1}(3))\\~\\ \cancel{f}(\cancel{f^{1}}(3)) \\~\\~\\3}\]

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3the inverse function "undoes" whatever the actual function does

Azureilai
 one year ago
Best ResponseYou've already chosen the best response.1I can see how that would apply to the second question. The answer would come out to two. But for the first question where it only ask for the inverse, should I just graph it and see what it comes out to?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3Ahh no, just use irishboy's hint

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.3solve \(x^5+x^3+x = 3\) and you'll get the inverse \(f^{−1}(3)\) is it hard to guess the \(x\) value that satisfies the above equation ?

Azureilai
 one year ago
Best ResponseYou've already chosen the best response.1I see it now. wow. Thanks again.
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