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If for some constant ‘a’, then f’(a) is

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If at x = 0 is

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If then f’(1) is equal to

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If f(x) = x¹⁰⁰ + x⁹⁹ + … x + 1, then f’(1) is equal to

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If f(x) = 1 – x + x² – x³ … –x⁹⁹ + x¹⁰⁰, then f’(1) is equal to