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     EduGorilla 
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    Direction: This paragraph is followed by a question which has four choices (1), (2), (3) and (4), out of which ONE or MORE THAN ONE are correct.

    Let F : R R be a thrice differentiable function. Suppose that F(1) = 0, F(3) = – 4 and F ‘ (x) < 0 for all x (1/2, 3). Let f(x) = xF(x) for all x R.

    If = – 12 and = 40, then which of the following expressions is/are correct?

    Options :-

    1. 9f'(3) + f' (1) - 32 = 0
    2. 9f' (3) - f' (1) + 32 = 0
    3. dx = - 12
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Reply To: Direction: This paragraph is followed by a question which has four choices (1), (2), (3) and (4), ou….
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