Application of Derivatives Part 2

Section: Mathematics
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Question : 71 of 100
 
Marks: +1, -0
If R is the least value of a such that the function f(x)=x2+ax+1 is increasing on [1,2] and S is the greatest value of a such that the function f(x)=x2+ax+1 is decreasing on [1,2], then the value of |R−S| is
[31 Aug 2021 Shift 1]
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