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JEE Main 10 Jan 2019 Shift 2 Solved Paper

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Question : 43

Total: 90

Let f : (–1,1) → R be a function defined by
f (x) = max {- |x| , - √1−x2}. If K be the set ofall points at which f is not differentiable, thenK has exactly :

Three elements
One element
Five elements
Two elements

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