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victoriaashby
11.10.2019 •
Mathematics
Find the arithmetic combination of f(x) =x+2, g(x)=x-2
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Ответ:
The arithmetic combinations of given functions are (f + g)(x) = 2x, (f - g)(x) = 4, (f
g)(x) =
, ![\left(\frac{f}{g}\right)(\mathrm{x})=\frac{x+2}{x-2}](/tpl/images/0309/6053/a7b7e.png)
Solution:
Given, two functions are f(x) = x + 2 and g(x) = x – 2
We need to find the arithmetic combinations of given two functions .
Arithmetic functions of f(x) and g(x) are (f + g)(x), (f – g)(x), (f
g)(x), ![\left(\frac{f}{g}\right)(\mathrm{x})](/tpl/images/0309/6053/0fab4.png)
Now, (f + g)(x) = f(x) + g(x)
= x + 2 +x – 2
= 2x
Therefore (f + g)(x) = 2x
similarly,
(f - g)(x) = f(x) - g(x)
= x + 2 –(x – 2)
= x + 2 –x + 2
= 4
Therefore (f - g)(x) = 4
similarly,
(f
g)(x) = f(x)
g(x)
= (x + 2)
(x – 2)
= x
(x – 2) + 2
(x -2)
Therefore (f
g)(x) = ![x^{2}-4](/tpl/images/0309/6053/79910.png)
now,
Hence arithmetic combinations of given functions are (f + g)(x) = 2x, (f - g)(x) = 4, (f
g)(x) =
, ![\left(\frac{f}{g}\right)(\mathrm{x})=\frac{x+2}{x-2}](/tpl/images/0309/6053/a7b7e.png)
Ответ:
l.m.a.
Step-by-step explanation: