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The resistor
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The maximum value of function f(x) = 3x^3 - 18x^2 + 27x - 40 on the set S = {x ∈ R : x^2 + 30 < 11x } is:
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Como calcular o resistor adequado para um LED.
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12V To 3V Converter Using BD139 NPN Transistor
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12V To 3V Converter Using BD139 NPN Transistor
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