Application of Derivatives Part 2
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If R is the least value of a such that the function f ( x ) = x 2 + a x + 1 is increasing on [ 1 , 2 ] and S is the greatest value of a such that the function f ( x ) = x 2 + a x + 1 is decreasing on [ 1 , 2 ] , then the value of | R − S | is
[31 Aug 2021 Shift 1]
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