Maharashtra State BoardHSC Arts 12th Board Exam
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Let f(x) = x3 − 62 + 9𝑥 + 18, then f(x) is strictly decreasing in ______ - Mathematics and Statistics

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MCQ
Fill in the Blanks

Let f(x) = x3 − 62 + 9𝑥 + 18, then f(x) is strictly decreasing in ______

Options

  • (−∞, 1)

  • (3, ∞)

  • (−∞, 1) ∪ (3, ∞)

  • (1, 3)

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Solution

(1, 3)

Concept: Increasing and Decreasing Functions
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