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

Although religious diversity has steadily increased throughout US history, the nation

7. If g(x) = -6x + 5 and h(x) = -9x - 11, find (goh)(x).

bobby descended 23 meters he then decided to descend another 11 meters write an integer to represent the total depth bobby descended

1.) 5(X+6) + 11 = 25 - 3x solve it

If you were a house, a contractor who hired two sub-contractors to help work on the house would be most like which type of bone cell?OsteogenicOsteoblast Osteoc

MA LASI SA O FUT PE MATA??????

Evaluate -2x^2+3x-5 where x=4 Please help! It’s worth 35 points!

Two tectonic plates are moving in opposite directions underneath the Pacific Ocean. In this area, we will be able to find a. An oceanic mountain range b. Volcan

the three parts of the cell theroy

How can a bill become law if the governor vetoes it? by waiting for a set period of time O by a two-thirds vote in both houses oby a one-third vote in both hous