inverse

1. Generating inverse

Can someone help me find the inverse of $y = 7 + 5x^3 + x^7$? The fact that there is more than one variable to a unique power makes the inverse a little less obvious than usual.
2. Solve determining inverse functions

Determine wether f(x) = 3x + 8 and g(x) = x - 8 / 3 are inverse functions. For f(x) = 3x - 19, find the inverse f-¹(x). Minus sign is supposed to be uppercase..
3. Numerical methods -finding matrix inverse

Hello new to the forum so if this in the wrong topic I do apoligise. im struggling to work out why to find the inverse of upper triangular and lower triangular matrix of a nxn matrix the operation order is 0(N^3). i get that for a normal NxN matrix, using gauss elimination we get 0(N^3) but...
4. Exponential into logarithm equation

Hi, I hope someone can help. I'm trying to convert y=100(2)^(x/0.32) to its inverse in logarithmic form. However, I'm struggling with the conversion steps. Can someone show me step-by-step on how to convert this equation? The answer is y = 0.32log(base 2)(x/100) Thanks, Olivia
5. Calculating inverse trig function

Hi, I hope someone can help. How does my calculator know what the range restrictions are on a inverse trig function? I know that inverse trig functions have a one-to-many mapping, so you must restrict the range. For example, I know that for arccosin it is convention to restrict the range...
6. One to One Function

Find all values of k such that f(x) = x^3 + 2x^2 + kx - 1 is one-to-one.
7. Inverse Trigonometric Function

if tan x = 1/cot x tan^-1(x) = ?
8. Fourier transform of rect function and its inverse Fourier transform

Hi I have calculated the FT of the rect function from -a to a and get this \frac{\sin(2\pi k a )}{\pi k} Now to perform the inverse \int^\infty _{-\infty}\frac{\sin(2\pi k a )}{\pi k} e^{2\pi i k x} dk I am not sure how to proceed from here, should I convert the sinc to and exponential?
9. Finding the Inverse of a Function

Find the inverse of the function. Confirm algebraically by showing that f(g(x) = x and g(f(x) = x. Then confirm graphically. 7). f(x)= √2x+3 How do I set this problem up? And what are the step to solving it? I've looked through my book but I haven't seen any problem with the g, f, and x and...
10. Newbie to Pre-Cal (w/ Finding Inverse of Function question)

I'm a high school student enrolled in a Pre-Cal course. I'm not very skilled when it comes to math, I've maintained C's and B's in each Math class I've ever been in and I've had to re-take a few of them.. I want to change that and keep my grades high this year. (Happy) Thank you everyone for any...
11. domain of inverse square root

I'm asked to find the domain for this question... My ans is (x-1)^2 + (y+1) ^2 >-1 , but the ans given by the author is different , from the sketch , we can know that the author ans is (x-1)^2 + (y+1) ^2 ≠ -1 , am i right ? Which is correct ? http://imgur.com/a/Kn68f
12. Inverse Logarithms

Hi! I am really confused on how to inverse logarithms! For this question, what would you do: y=10^0.5x Or this one: y= 3log10x Any help much appreciated! Thanks in advance, ~EbonyJade :)
13. Inverse logarithmic functions

Hi all, I'm trying to learn how to do inverse logarithmic functions but I keep getting confused on what I'm supposed to do and can't find a good website that tells me the exact steps. So I have tried the following examples: 1. f(x) = 3^x +2 x = 3^y + 2 x-2 = 3^y And somehow that is supposed to...
14. First compute the inverse of the function, then the derivative at y=0

Please help! Okay so I got this function f(x) = x^3 + x + 2. First I have to find the inverse of the function. After that I have to get the derivative of the inverse function at y=0. Sorry for bad explanation(finnish engineer student)
15. inverse probability density function

Hi, In Excel there is a Norm.INV() function and in my current tool I don't have that (PowerPivot). Does anyone know how to calculate the Norm.INV()? I've read something about the BOX-Mueller but I don't understand it quite..I want to generate a simulation based on random function and based on...
16. Integration of Inverse Trig Functions 2

I am having trouble integrating the function below. I haven't studied integration techniques beyond integration by substitution and a few basic integration tables. So, do not show integration by parts, trigonometric substitution or partial fractions in terms of solving this problem. I think...
17. Integration of Inverse Trig Functions 1

I am having trouble integrating the function below. I haven't studied integration techniques beyond integration by substitution and a few basic integration tables. So, do not show integration by parts, trigonometric substitution or partial fractions in terms of solving this problem. I think...
18. Inverse Functions CAS

Hi :) how do you input an inverse function in a Ti-Inspire CAS calculator?
19. Inverse of Elimination Matrix

My book said the inverse of an elimination matrix is simply a matrix with diagonals of 1 and all the off diagonal nonzero terms of the elimination matrix multiplied by negative 1. Thus, if E=\begin{bmatrix} 1 & 0 & 0 \\ 0.5 & 1 & 0 \\ 0.25 & 1 & 1 \end{bmatrix} then E^{-1} = \begin{bmatrix}...
20. Inverse Functions

Hi :) I am learning Inverse Functions and I'm wondering how you would figure it out when an interval is already given to you like the example below: I will show you what working out I've already done: Find the inverse function and state its domain and range. f: [1,5] -> R, f(x) = 3-x f(x)-1...