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Let \(f(x)\) be a continuous function on \([a, b]\) and differentiable on \((a, b)\). Then, this function \(f(x)\) is st…

Q1

Let \(f(x)\) be a continuous function on \([a, b]\) and differentiable on \((a, b)\). Then, this function \(f(x)\) is strictly increasing in \((a, b)\) if

a

\(f'(x)<0,\forall x\in (a,b)\)

b

\(f'(x)>0,\forall x\in (a,b)\)

c

\(f'(x)=0,\forall x\in (a,b)\)

d

\(f(x)=0,\forall x\in (a,b)\)

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