Question

(f^-1) of f(x) = ( x^(3)+2) at (1 , 3).

Answer 1

Inverse of function?

Answer 2

Yes, please

Answer 3

the 'at (1, 3)' is throwing me off

Answer 4

i think its irrelevant? so just find inverse

Answer 5

I think its just a saying that you should let y=f(x), you see,
\[f(x)=x^3+2, \]
when y=f(x),
\[y=x^3+2\]
3=1+2
3=3

Answer 6

why would it say \(f^{-1}\)? i think its asking for inverse

Answer 7

Inverse goes with
\[y=f(x) \\ \\ y=x^3+2 \\ \\ ^3\sqrt{y-2}=x \\ \\ f^{-1}(x)=^3\sqrt{x-2}\]

Answer 8

Yup, inverse

Answer 9

yeah correct btw proper way to write cube root is \sqrt[3]{x} \[\sqrt[3]{x}\]

Answer 10

I'm liking Sam's Answer.

Answer 11

yes with the \(\pm\)

Answer 12

no you dont need +- because its cube its odd number

Answer 13

\text{} doesn't work btw

Answer 14

im not using \text{}?

Answer 15

if you don't believe me that you don't need +- here's a solution generated by computer http://www.wolframalpha.com/input/?i=inverse+of+f%28x%29+%3D+x%5E3%2B2

Answer 16

I do guys, thanks a lot. I already love this site