Function \[f(x)={{x}^{4}}-\frac{{{x}^{3}}}{3}\]is

1.	Function \[f(x)={{x}^{4}}-\frac{{{x}^{3}}}{3}\]is
A.	Increasing for \[x>\,\frac{1}{4}\]and decreasing for \[x<\frac{1}{4}\]
B.	Increasing for every value of x
C.	Decreasing for every value of x
D.	None of these
Answer» B. Increasing for every value of x

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Function \[f(x)={{x}^{4}}-\frac{{{x}^{3}}}{3}\]is

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