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標題:

F4 Maths (Log) Quickly please!

發問:

(log x^4 + log y^2) / log x y^ (1/2) =? Ans: 4 What are the steps?

• Dividend = divisor x quotient + remainder
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• 數學題(5分)

 

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最佳解答:

(log x^4 + log y^2) / log x y^ (1/2) = (4log x + 2log y) / (log x + log y^(1/2)) = (4log x + 2log y) / (log x + (1/2)log y) = 2(2log x + logy) / (1/2) (2log x + log y) = 2 / (1/2) = 4

其他解答:

(log x^4 + log y^2) / log x y^ (1/2) =(4logx+2logy)/(logx+1/2logy) =2(2logx+logy)/(logx+1/2logy) =2(2logx+logy)/1/2(2logx+logy) =2/(1/2) =4