TS EAMCET 9-Sep-2020 Shift 2 Solved Paper
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Question : 69 of 160
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If the Rolle’s theorem holds for the function f ( x ) = x 4 + a x 3 + b x , in − 1 ≤ x ≤ 1 , and f ′ (
) = 0 , then a b =
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