What is the derivative of f(x) = 3x^5 + 9x + -6?
- A. 15x^4
- B. 3x^4 + 9
- C. 15x^4 + 9 ✓
- D. 15x^5 + 9
Correct answer
C. 15x^4 + 9
Explanation
Using the power rule, the derivative of 3x^5 is 15x^4, the derivative of 9x is 9, and the derivative of the constant -6 is 0. So f'(x) = 15x^4 + 9.
Submitted by: MCQsHub Editorial
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