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Let \(f(x)\) be a cubic polynomial with \(f(1) = - 10,f( - 1) = 6\), and has a local minima at \(x = 1,f'(x)\) has a loc…

Q1

Let \(f(x)\) be a cubic polynomial with \(f(1) = - 10,f( - 1) = 6\), and has a local minima at \(x = 1,f'(x)\) has a local minima at \(x = - 1\). Then \(f(3)\) is equal to

a

20

b

22

c

18

d

15

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