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Let f(x)=(x^(4)-lambdax^(3)-3x^(2)+3lamb...

Let `f(x)=(x^(4)-lambdax^(3)-3x^(2)+3lambdax)/(x-lambda).` If range of f(x) is the set of entire real numbers, the true set in which `lambda` lies is

A

[-2,2]

B

[0,4]

C

(1,3)

D

None of these

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A
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