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Cjohnston742
15.12.2020 •
Mathematics
Find the inverse of “f” algebraically, please!
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Ответ:
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Here are the steps to find the inverse
Now this would be the answer if our original domain was![0 \le x \le 6](/tpl/images/0984/5701/738d4.png)
However, that's not the case and instead our domain is![-6 \le x \le 0](/tpl/images/0984/5701/b0421.png)
Reflecting any (x,y) point in this domain restriction, over the the line y = x, will have us land on a point with a negative y value. This is because the inverse will swap the x and y values.
Therefore, the inverse function must ultimately be negative.
Currently
is positive since the result of any square root is never negative.
To fix this, we stick a negative out front to get the final answer being![f^{-1}(x) = -\sqrt{36-x^2}](/tpl/images/0984/5701/6cf58.png)
Ответ:
Hope this helps