The number of points at which g(x)=1+f(x)21 is not differentiable, where f(x)=1+x11 , is 1 b. 2 c. 3 d. 4

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Question

The number of points at which $g (x) = \frac{1}{1 + \frac{2}{f ( x )}}$ is not differentiable, where $f (x) = \frac{1}{1 + \frac{1}{x}}$ , is $1$ b. $2$ c. $3$ d. $4$

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Amelia Discussed

The number of points at which

g (x) = \frac{1}{1 + \frac{2}{f ( x )}}

is not differentiable, where

f (x) = \frac{1}{1 + \frac{1}{x}}

, is

1

2

3

4

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Question Text

The number of points at which

g (x) = \frac{1}{1 + \frac{2}{f ( x )}}

is not differentiable, where

f (x) = \frac{1}{1 + \frac{1}{x}}

, is

1

2

3

4