AP EAMCET Engineering 2015 Code A Paper

Section: Mathematics
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Question : 71 of 160
 
Marks: +1, -0
If f is defined in [1,3] by f(x)=x3+bx2+ax, such that f(1)−f(3)=0 and f′(c)=0 where c=2+
1
√3
,
then(a,b)=
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