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The power output P (in W) of a certain 9.0-V battery is given by P= 9.01 -3.01-, where I is the current (in A). Find

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The power output P (in W) of a certain 9.0-V battery is given by P= 9.01 -3.01-, where I is the current (in A). Find the current for which the power is a maximum. Find the derivative of the function to be maximized. dP di The power is a maximum when the current is (Type an integer or a decimal.)

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