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maths

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f(x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?

  • maths -

    f(x) = x^2 - 100

    has maximum value of 0 in [10,10]

    For any b,c note equal to (0,-100), the max of f(x) will be nonzero.

    So, min(max(|f(x)|)) = 0

  • maths -

    50

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