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Calculate d2y dx2\frac { \mathrm { d } ^ { 2 } y } { \mathrm {~d} x ^ { 2 } }

Question 45

Multiple Choice

Calculate d2y dx2\frac { \mathrm { d } ^ { 2 } y } { \mathrm {~d} x ^ { 2 } } . y=4x5+5lnxy = 4 x ^ { - 5 } + 5 \ln x


A) 4x105x\frac { 4 } { x ^ { 10 } } - \frac { 5 } { x }
B) 120x7120 x ^ { 7 }
C) 120x75x2\frac { 120 } { x ^ { 7 } } - \frac { 5 } { x ^ { 2 } }
D) 120x7+5x2\frac { 120 } { x ^ { 7 } } + \frac { 5 } { x ^ { 2 } }
E) 100x51x2\frac { 100 } { x ^ { 5 } } - \frac { 1 } { x ^ { 2 } }

Correct Answer:

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