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 Find ftt(x) if f(x)=(7+4x)e−4x\text { Find } f ^ { tt} ( x ) \text { if } f ( x ) = ( 7 + 4 x ) e ^ { - 4 x }

Question 81

Multiple Choice

 Find ftt(x)  if f(x) =(7+4x) e−4x\text { Find } f ^ { tt} ( x ) \text { if } f ( x ) = ( 7 + 4 x ) e ^ { - 4 x }


A) ftt(x) =−80(7+4x) e−4xf ^ { tt } ( x ) = - 80 ( 7 + 4 x ) e ^ { - 4 x }
B) ftt(x) =(−80−64x) e−4xf ^ { tt } ( x ) = ( - 80 - 64 x ) e ^ { - 4 x }
C) ftt(x) =−(24+16x) e−4xf ^ { tt} ( x ) = - ( 24 + 16 x ) e ^ { - 4 x }
D) ftt(x) =(80−64x) e−4xf ^ { tt} ( x ) = ( 80 - 64 x ) e ^ { - 4 x }
E) ftt(x) =(80+64x) e−4xf ^ { tt } ( x ) = ( 80 + 64 x ) e ^ { - 4 x }

Correct Answer:

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