What is the derivative of f(x) = 4x^4 + 1x + 6?
- A. 4x^3 + 1
- B. 16x^3 + 1 ✓
- C. 16x^3
- D. 16x^4 + 1
Correct answer
B. 16x^3 + 1
Explanation
Using the power rule, the derivative of 4x^4 is 16x^3, the derivative of 1x is 1, and the derivative of the constant 6 is 0. So f'(x) = 16x^3 + 1.
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