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f(x)=x;g(x)=4x1f ( x ) = \sqrt { x } ; g ( x ) = 4 x - 1

Question 45

Multiple Choice

f(x) =x;g(x) =4x1f ( x ) = \sqrt { x } ; g ( x ) = 4 x - 1
Find (fg) (x) \left( \frac { f } { g } \right) ( x )


A) (fg) (x) =x14x, where x14\left( \frac { \mathrm { f } } { \mathrm { g } } \right) ( \mathrm { x } ) = \frac { \sqrt { \mathrm { x } } } { 1 - 4 \mathrm { x } } , \text { where } x \neq \frac { 1 } { 4 }
B) (fg) (x) =x4x1, where x14\left( \frac { \mathrm { f } } { \mathrm { g } } \right) ( \mathrm { x } ) = \frac { \sqrt { \mathrm { x } } } { 4 \mathrm { x } - 1 } , \text { where } x \neq \frac { 1 } { 4 }
C) (fg) (x) =x4x4, where x1\left( \frac { f } { g } \right) ( x ) = \frac { \sqrt { x } } { 4 x - 4 } , \text { where } x \neq 1
D) (fg) (x) =14xx, where x0\left( \frac { f } { g } \right) ( x ) = \frac { 1 - 4 x } { \sqrt { x } } , \text { where } x \neq 0

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