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Find the Linear Approximation To f(x)=1x3+1f ( x ) = \frac { 1 } { \sqrt { x ^ { 3 } + 1 } }

Question 69

Multiple Choice

Find the linear approximation to f(x) =1x3+1f ( x ) = \frac { 1 } { \sqrt { x ^ { 3 } + 1 } } at a=2.a = 2 .


A) -2x + 7
B) 13x23\frac { 1 } { 3 } x - \frac { 2 } { 3 }
C) 29x+79- \frac { 2 } { 9 } x + \frac { 7 } { 9 }
D) 13x73\frac { 1 } { 3 } x - \frac { 7 } { 3 }
E) 2x72 x - 7
F)
13x+23- \frac { 1 } { 3 } x + \frac { 2 } { 3 }
G)
29x79\frac { 2 } { 9 } x - \frac { 7 } { 9 }
H) 13x+73- \frac { 1 } { 3 } x + \frac { 7 } { 3 }

Correct Answer:

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