Wednesday, 14 October 2009

Math Challenge 18

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From the logarithm equation below, can you determine what is the expression for y?

 log y = x + log x

You may give your answer in the comment section and also help explain how you get it (for the sake of sharing).

Thanks ^^

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2 comments:

Ali said...

Take the exponential of both sides you get
exp(logy)=exp(x+logx)
y=exp(x).exp(logx)
y=x.exp(x)

EeHai said...

Hi Ali,

I suppose "log y" has the number base as 10. I was expecting the answer to contain a "10" within.