What is the derivative of f(x) = 1x^3 + 5x + -9?
- A. 3x^2
- B. 3x^3 + 5
- C. 3x^2 + 5 ✓
- D. 1x^2 + 5
Correct answer
C. 3x^2 + 5
Explanation
Using the power rule, the derivative of 1x^3 is 3x^2, the derivative of 5x is 5, and the derivative of the constant -9 is 0. So f'(x) = 3x^2 + 5.
Submitted by: MCQsHub Editorial
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