1.

Which of the following statements is true for the funiction f(x)={{:(sqrt(x)",",xge1),(x^(3)",",olexle1),((x^(3))/(3)-4x",",xle0):}

Answer»

It is monotonic increasing `Aax inR`.
f(x) fails to existfor three distinct REAL values of x.
f(x) changes its sign twice as x varies from `-ootooo`.
The function ATTAINS its EXTREME values at `x_(1)andx_(2)` , such that `x_(1)x_(2)GT0`

Answer :C


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