What is the inverse of the function ƒ(x) = ex?

In summary, the conversation discusses two questions related to the inverse of a function and the limit of a formula. The first question asks for the inverse of the function ƒ(x) = ex and the second question asks for the variable and constant in the limit of (e^(x+h) - e^x)/h. The conversation also mentions a link to a resource for the first question and a reminder about the rules for receiving help.
  • #1
livestrong136
25
0
2 very quick questions?? help needed asap

1. What is the inverse of the function ƒ(x) = ex?

I think its 0? what do you guys think.

2. What is the lim (e^(x+h) - e^x)/h

This one i tried and got a really weird answer can someone just give me just the answer??
 
Physics news on Phys.org
  • #3


livestrong136 said:
can someone just give me just the answer??

No..
 
  • #4


livestrong136 said:
1. What is the inverse of the function ƒ(x) = ex?

I think its 0? what do you guys think.
There is no function whose inverse is the zero function. Also, is the formula f(x) = ex or f(x) = ex? Your second question makes me think it might be the latter.
livestrong136 said:
2. What is the lim (e^(x+h) - e^x)/h

This one i tried and got a really weird answer can someone just give me just the answer??
As micromass already said, no we won't just give you the answer - this goes against the rules. To see the rules, click the Rules button near the top of the window and look at the section titled "Homework Help."
 

What is the inverse function of ƒ(x) = ex?

The inverse function of ƒ(x) = ex is ƒ^-1(x) = ln(x).

How do you find the inverse of a function?

To find the inverse of a function, follow these steps:
1. Rewrite the function as y = ƒ(x).
2. Switch the x and y variables.
3. Solve for y.
4. Replace y with ƒ^-1(x) to get the inverse function.

What is the relationship between a function and its inverse?

The inverse of a function is the opposite or "undoing" of the original function. It undoes the effects of the original function and returns the input value back to its original output value.

Why is it important to find the inverse of a function?

The inverse of a function is useful in solving equations, finding the domain and range of a function, and graphing functions. It also allows us to easily switch the x and y coordinates on a graph.

Can every function have an inverse?

No, not every function has an inverse. A function must be one-to-one, meaning that every input has a unique output, in order to have an inverse. If there are multiple inputs with the same output, the function does not have an inverse.

Similar threads

  • Precalculus Mathematics Homework Help
Replies
7
Views
386
  • Precalculus Mathematics Homework Help
Replies
15
Views
627
  • Precalculus Mathematics Homework Help
Replies
3
Views
1K
  • Precalculus Mathematics Homework Help
Replies
11
Views
2K
  • Precalculus Mathematics Homework Help
Replies
6
Views
996
  • Precalculus Mathematics Homework Help
Replies
3
Views
904
  • Precalculus Mathematics Homework Help
Replies
9
Views
1K
Replies
3
Views
209
  • Linear and Abstract Algebra
Replies
9
Views
737
Replies
17
Views
2K
Back
Top