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解答此題前先要瞭解對數函數的一些知識:1、定義域(符號“^”是電腦中表示平方的符號,即x^2,表示x的平方)若a^ y=x(a>0,且a≠1),則,函數y=loga x叫做“以a為底x的對數等於y,y=loga x叫做對數函數…
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