Let f be the function from R to R defined by f(x) = x^{2}. Find

naivlingr

naivlingr

Answered question

2021-09-20

Let f be the function from R to R defined by f(x)=x2. Find
f1(1)

Answer & Explanation

joshyoung05M

joshyoung05M

Skilled2021-09-21Added 97 answers

Given: f:RR
f(x)=x2
f1(1) contains every component of R that has image 1 as its.
f(x)=1
Since f(x)=x2, we have:
x2=1
x21=0
(x+1)(x1)=0
These are the equation's solutions: x=1 and x=1 and f1(1) thus contains 1 ad 1.
f1(1)={1,1}

Nick Camelot

Nick Camelot

Skilled2023-05-27Added 164 answers

Let f be the function from to defined by f(x)=x2. We need to find f1(1).
To find the inverse of f, we set y=f(x) and solve for x. So, we have:
y=x2
To find x, we take the square root of both sides:
y=x2
y=|x|
Since f is a real-valued function, f1 will also be a real-valued function. Therefore, we consider only the positive square root:
y=x
Now, we substitute y=1 to find x:
1=x
x=1
Thus, f1(1)=1.
Mr Solver

Mr Solver

Skilled2023-05-27Added 147 answers

To solve the equation f1(1) for the function f(x)=x2, we need to find the inverse of f(x) and evaluate it at 1.
To find the inverse of f(x), we switch the roles of x and f(x) and solve for x. So, we start with the equation y=x2 and rearrange it as follows:
y=x2
y=x2
y=|x|
Here, we take the square root of both sides and introduce the absolute value to account for the positive and negative roots.
Now, to find f1(1), we substitute 1 for y:
1=|x|
Since the square root of 1 is 1, we have:
1=|x|
To solve for x, we consider the two cases for the absolute value:
Case 1: |x|=x
In this case, we have 1=x.
Case 2: |x|=x
In this case, we have 1=x. Solving for x, we get x=1.
Therefore, the solutions to f1(1) are x=1 and x=1.
madeleinejames20

madeleinejames20

Skilled2023-05-27Added 165 answers

Result:
1
Solution:
First, let's find the inverse function f1(x) by swapping the variables x and y and solving for y:
x=y2x=y
Therefore, the inverse function is given by f1(x)=x.
Now, we can find the value of f1(1) by substituting x=1 into the inverse function:
f1(1)=1
Simplifying further, we have:
f1(1)=1
Hence, the value of f1(1) is 1.

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