Tutors Answer Your Questions about Inverses (FREE)
Question 1074580: OK if someone can help me please understand how to do these I have a lot of problems similar but I need at least these two so I can do the rest . I looked at the sample but I'm still confused
How can I write a question In words that could be answered using expression for each and a diagram.
3/4 ÷ 1/2 and vise versa 1/2 ÷ 3/4
Click here to see answer by josgarithmetic(39616)  |
Question 1077061: Consider the functions  and  , find f(g(x)) and g(f(x)). Determine whether f and g are inverses of each other.
I know both f and g are inverses of each other as they're both x.
f(g(x)) = x
g(f(x)) = x
For both f(g(x)) and g(f(x)) what are values that should be excluded from the domains? Since they're both  I thought it was either excluding 0 from the domain or no values should be excluded from the domain? I'm not sure.
Click here to see answer by ikleyn(52776)  |
Question 1077927: I'm having difficulty in confirming whether or not these two functions are inverses (book says they are). The original function is 1/(x-3), and the inverse is (1-3x)/x. I need to prove that the two are inverses with the (f of (F inverse (x)) method. The first one, (F(F inverse (X)) = x, but the second one doesn't no matter what I do.
Click here to see answer by Boreal(15235)  |
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