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ZanzabumX [31]
3 years ago
5

Given the function f(x) = The quantity of 2x minus 5, divided by 3, which of the below expressions is correct?

Mathematics
1 answer:
adell [148]3 years ago
3 0
Hello : 
f(x) = (2x-5)/3
<span>f−1(x) = (3x+5)/2 
because : f(x) 0 </span>f−1(x) = x and  f−1(x) 0 f(x) = x
f(x) 0 f−1(x) = f( f−1(x) ) = f ((3x+5)/2) = (2(3x+5)/2  - 5))/3 = 3x /3 =x
same cacul for :  f−1(x) 0 f(x) = x 
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