alleryStart learning →Reversing differentiation, which polynomial has 3x^2 + 2x + 1 as its derivative?
Ax^3 + x^2 + x + C
B6x^2 + 2x + C
Cx^3 + 2x^2 + x + C
D3x^3 + x^2 + x + C
Answer & Solution
Correct answer: A. x^3 + x^2 + x + C
Integrating term by term gives x^3 from 3x^2, x^2 from 2x and x from 1.
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