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Aleksandr-060686 [28]
3 years ago
13

Please help me find the inverse

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
5 0

f^{-1}(x) is supposed to be a function such that

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

In this case, we need

f^{-1}(\sqrt[3]{x-2})=x

To recover x from \sqrt[3]{x-2}, we would first need to raise \sqrt[3]{x-2} to the third power:

(\sqrt[3]{x-2})^3=x-2

Then add 2:

(x-2)+2=x

To recap, we carried out

f^{-1}(\sqrt[3]{x-2})=(\sqrt[3]{x-2})^3+2=x

which implies that the inverse function is

f^{-1}(x)=x^3+2

To verify: we should also have that f(f^{-1}(x))=x. We get

f(x^3+2)=\sqrt[3]{(x^3+2)-2}=\sqrt[3]{x^3}=x

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Answer:

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Step-by-step explanation:

From the question we are told that

     Two fair dice, one green and one red were rolled

Generally the  outcomes on the dice independent because the outcome on the first dice is not affected by the second die

Generally the  probability of getting a 1  on a dice rolled is  P(1) =  \frac{1}{6}

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Generally the probability of P(1 on green die and 5 on red die) is mathematically represented as

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Generally the probability of P(5 on green die and 1 on red die) is mathematically represented as

          P(5 \& 1) = \frac{1}{6}  *\frac{1}{6}

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Generally the probability of P((1 on green die and 5 on red die) or (5 on green die and 1 on red die)) is mathematically represented as

          P(5 \& 1 | 1\& 5  ) = \frac{1}{36} + \frac{1}{36}

         P(5 \& 1 | 1\& 5  ) = \frac{1}{18}

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