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valentinak56 [21]
3 years ago
10

Find f^-1(x) for f(x) = 1/x^3

Mathematics
1 answer:
kow [346]3 years ago
4 0

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

<u>Step-by-step explanation:</u>

y = \frac{1}{x^{3}}

Inverse is when you swap the x's and y's and then solve for "y":

x = \frac{1}{y^{3}}

y^{3} = \frac{1}{x}

y = \frac{1}{\sqrt[3]{x}}

y = \frac{1}{\sqrt[3]{x}}*(\frac{\sqrt[3]{x}}{\sqrt[3]{x}})^{2}

y = \frac{\sqrt[3]{x^{2}}}{x}

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<span>The range would be all real numbers such that 0 ≤ y ≤ 40.

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