ID: Class: 12 Subject: Math Topic: Application of derivative Type: Mcq Year: 2024

Question:

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. \(f^{\prime}(x)\lt;0\), \(\forall x\in(a,b)\)
  • B. \(f^{\prime}(x)\gt;0\), \(\forall x\in(a,b)\)
  • C. \(f^{\prime}(x)=0\), \(\forall x\in(a,b)\)
  • D. \(f(x)\gt;0\), \(\forall x\in(a,b)\)