Application of Derivatives Part 1
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Let f(x) be a polynomial of degree 3 such that f(-1) = 10, f(1) = -6, f(x) has a critical point at x = -1 and f'(x) has a critical point at x = 1. Then f(x) has a local minima at x = ______ .
[8 Jan 2020 Shift 2]
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