ayeitscharis ayeitscharis

01-09-2016
Mathematics

contestada

Let f(x)=x^2 -81. Find f^1(x)

Respuesta :

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

Otras preguntas

process by which sand dunes are formed

How do I solve this problem? Please help

What was the british response to the boston tea party?

How is the comma or dash used as an interrupter in this sentence? If Janice, my neighbor's sister, arrives, we will take her to the museum. 1.appositive 2.dire

which of the names on this list it was not an American Hero ?

To wich digsetive organ does food travel when it leaves stomach

which of these events are an example of urbanization

What do floor leaders do?

The price to ship a box varies directly as the weight of the box in pounds. A box that weighs 10 pounds costs $10.90 to ship. What would it cost to ship a seco

Not only does topsoil erosion lead to loss of soil fertility, it can also cause ________ .