KEAM 2012 Math Paper

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Question : 55 of 120

Marks: +1, -0

If f(x)=|

x	λ
2λ	x

|, then f(λx)−f(x) is equal to

x(λ2−1)
2λ(x2−1)
λ2(x2−1)
λ(x2−1)
x2(λ2−1)

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