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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

krassi_holmz
2006-03-02 03:30:37

[corrected]

krassi_holmz
2006-03-02 03:28:58

Mathsy's right.

mathsyperson
2006-03-02 03:15:17

I think there's a mistake in there.

y = 10-x
x+y = 10
x = 10-y

Therefore, f-1(x) = 10-x.

krassi_holmz
2006-03-01 17:06:14

Ya it's inverse function.
Write it like this:
y=10-x
-x=y-10
x=10-y
This is the inverse function:
f^(-1)(y)=10-y
[corrected]

naturewild
2006-03-01 16:56:56

I'm positive that it's asking for an inverse. But I dont know why you are dealing with inverse when you have learnt derivatives.

kynetikg01
2006-03-01 16:10:39

hello everyone. i was doin some calculus and got stuck on this problem
f(x)= 10 - x

find the : f^(-1)(x)= ?

written as f'(x) just replace the ' w/ the -1

what does that mean? is that the inverse or somethIN?
i've been dealing w/ derivatives
-thanks

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