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Use linear approximation, i.e. the tangent line, to approximate sqrt[3] { 8.4 } as follows:
Let f(x) = sqrt[3] x. The equation of the tangent line to f(x) at x = 8 can be written as y=mx+c where m=1/12 b=4/3

find the approximation for sqrt[3] {8.4}

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