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There is an algebra test to see
if two functions are inverses of each other. But, before I can
tell you about it, I need to show you this stuff first.
This notation we know:
And we think of it as:
Now, we're going to have two
functions to mess with at once... Like these:
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and |
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The game is that we'll need to
find
That's
f of
g(x).
If you read it and
say it correctly, it's really going to help you do the problem!
Before, we had
f(x)
which we read as
"f
of
x"...
Now, we have
f(g(x))...
f
of g(x)
Same game...
Just a bigger blob!
Continued on the
next
page
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