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Question: Answered & Verified by Expert
Let f(x)=5-|x-2| and gx=x+1, x  R. If f(x) attains maximum value at α and g(x) attains minimum value at β, then limx-αβx-1x2-5x+6x2-6x+8 is equal to
MathematicsApplication of DerivativesJEE MainJEE Main 2019 (12 Apr Shift 2)
Options:
  • A 32
  • B 12
  • C -32
  • D -12
Solution:
2588 Upvotes Verified Answer
The correct answer is: 12

Maxima of fx will occur at x=2 i.e., α=2

Minima of g(x) will occur at x=-1 i.e. β=-1

limx2(x-1)(x-2)(x-3)(x-2)(x-4)=12.

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