alleryStart learning →For f(x) = x^2 - 4x on [0, 4], Rolle's theorem gives which value of c?
A4
B2
C3
D1
Answer & Solution
Correct answer: B. 2
f(0) = f(4) = 0, and f'(c) = 2c - 4 = 0 gives c = 2, which lies inside (0, 4).
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