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Functions… | NUST Entrance Test Mathematics | ClassNotes

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NUST Entrance Test
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Functions and Limits

Set 4

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MM

Mashaal Masha

Oct 05, 2022

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$If $f(x)=3x^{3}+7$, then $f^(-1)=$$
$If f(x)=-2x+8 then $f^(-1)=$$
$The domain of $f^{-1}(x)$ of the function $f(x)=(x-50^{2})$ is$

Choose the correct options for the following questions.

If $f(x)=3x^{3}+7$, then $f^(-1)=$

Difficulty: Easy

A:

(\frac{3}{8})^{\frac{1}{3}}

B:

The domain of $f^{-1}(x)$ of the function $f(x)=(x-50^{2})$ is

C:

(\frac{-3}{8})^{\frac{1}{3}}

D:

(\frac{1}{8})^{\frac{1}{3}}

If f(x)=-2x+8 then $f^(-1)=$

Difficulty: Easy

A:

10

B:

-10

C:

4

D:

9/2

The domain of $f^{-1}(x)$ of the function $f(x)=(x-50^{2})$ is

Difficulty: Easy

A:

[0, \propto)

B:

(5, \propto)

C:

[5, \propto)

D:

[0, \propto]

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postFunctions and Limits - Set 2
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postFunctions and Limits - Set 6
postFunctions and Limits - Set 7