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Evgesh-ka [11]
2 years ago
5

Use f(x) = 5 x and f-1(x) = 2x to solve the problems. f(2)= fl(1) = f11f2) =

Mathematics
1 answer:
Molodets [167]2 years ago
3 0

Answer:

f(2)= 5

f^-1(1)=2

f^-1(f(2))= 10

Step-by-step explanation:

f(x)= 5x ,  f^{-1}(x)= 2x

first we need to find f(2), plug in 2 for x  in f(x)

f(x)= 5x \\f(2)= 5(2)= 10

f^{-1}(x)= 2x

To find f^-1(1) , we plug in 1 for x in f inverse

f^{-1}(x)= 2x\\f^{-1}(1)= 2(1)= 2

now we find f^-1(f(2))

we know f(2)= 10

so we find f^-1(10)

f^{-1}(x)= 2x\\f^{-1}(10)= 2(10)= 20

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