ayeitscharis
ayeitscharis
01-09-2016
Mathematics
contestada
Let f(x)=x^2 -81. Find f^1(x)
Respuesta :
caylus
caylus
01-09-2016
Hello,
I suppose you mean -1! else f(x)=f^1(x)
y=x²-81
-> x=y²-81 (exchahge x and y)
->y²=x+81 (solve for y)
[tex]y= \sqrt{x+81} \ or \ y=- \sqrt{x+81} [/tex] It is because (f^-1)(x) is not a function!
with x>=-81
Answer Link
VER TODAS LAS RESPUESTAS ( 62+ )
Otras preguntas
Fill in the blanks in the conversation below with the correct form of estar.
closes integers to this question
The composition of pennies has changed over the years, depending on a number of factors, including the availability of various metals. A penny minted in 1825 wa
Why did the Apaches want the Spanish to build the San Saba Mission? a.to learn Christianity b. to learn the Spanish way of life c. for protection against the C
1 hundred is how many times greater than 1 thousand
how do I find the slope
The debits to Work in Process--Assembly Department for April, together with data concerning production, are as follows: April 1, work in process: Materials cos
WORK NEEDS TO BE SHOWNTranslate the following "11 less than the quotient of a number, n, and 5 is 9." Then find the value of n.
Ted spent half of his weekly allowance playing arcade games. To earn more money his parents let him wash the car for $7. What is his weekly allowance if he ende
Which sentence would be the best resolution to the story? A: Leslie decided to forget everything her mom taught her and hitch a ride to the nearest town for so
