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Let f(x)=15x395x2+3x15f ( x ) = \frac { 1 } { 5 } x ^ { 3 } - \frac { 9 } { 5 } x ^ { 2 } + 3 x - \frac { 1 } { 5 }

Question 1

Multiple Choice

Let f(x) =15x395x2+3x15f ( x ) = \frac { 1 } { 5 } x ^ { 3 } - \frac { 9 } { 5 } x ^ { 2 } + 3 x - \frac { 1 } { 5 } The set of all critical numbers of ƒ is


A) {1}\{ - 1 \}
B) {5}\{ - 5 \}
C) {1,5}\{ - 1 , - 5 \}
D) {1,5}\{ 1,5 \}
E) \varnothing

Correct Answer:

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