Rolle's theorem for f(x) = x^2 - 4x + 3 on [1, 3] gives c equal to
A2
B1
C3
D0
Answer & Solution
Correct answer: A. 2
Here f(1) = f(3) = 0, and f'(c) = 2c - 4 = 0 gives c = 2.
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