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1. 21. The function Ax)=3x³ -x+3, has local maximum at A) x=-1 B) x=-2 C) x=4 D) x=0 E) x=1 22. Where is the function fx)=x* – 2r³ + 5x+13 concave downwards. A) 0

1. 21. The function Ax)=3x³ -x+3, has local maximum at A) x=-1 B) x=-2 C) x=4 D) x=0 E) x=1 22. Where is the function fx)=x* – 2r³ + 5x+13 concave downwards. A) 0

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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21. The function Ax) =3x³ -x+3, has local maximum at A) x=-1 B) x=-2 C) x=4 D) x=0 E) x= 1 22. Where is the function fx)=x* – 2x³ + 5x+13 concave downwards. A) 0<x<1 B) 0<x<2 C) -1<x<2 D) -1<x<1 E) -2<x<2
Transcribed Image Text:21. The function Ax) =3x³ -x+3, has local maximum at A) x=-1 B) x=-2 C) x=4 D) x=0 E) x= 1 22. Where is the function fx)=x* – 2x³ + 5x+13 concave downwards. A) 0<x<1 B) 0<x<2 C) -1<x<2 D) -1<x<1 E) -2<x<2
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