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KatRina [158]
3 years ago
12

Please Help! Are F(x) and G(x) inverse functions across the domain [3,+∞)?

Mathematics
1 answer:
allochka39001 [22]3 years ago
5 0

Answer:

A

Explanation:

For functions to be inverse, it must be true that f( g(x) ) = x and g( f(x) ) = x.

But for F( G(x) ), we have √( G(x) - 3 ) + 8

= √( (x+8)² - 3 - 3 ) + 8

= √( (x+8)² - 6 ) + 8

This -6 part should be cancelled out for functions to work out but we cannot do that, therefore F(x) and G(x) are not inverse.

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