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k such that f(x) = \begincases e^(kx), 0 <= x<4 }, {x+3, 4 <= x <= 8 \endcases seja contínua em x=4
k such that f(x) = \begincases e^(kx), 0 <= x<4 }, {x+3, 4 <= x <= 8 \endcases seja contínua em x=4
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