Friday, July 31, 2009

Express the given quantity as a single logarithm?

Express the given quantity as a single logarithm.


ln(a + b) + ln(a - b) - 5 ln(c)





i do not see how this can be in a single logarithm.





do i start like this?


ln(a)*ln(b)+(ln(a)/ln(b))*-5ln(c)?





and if that is right, what is next...

Express the given quantity as a single logarithm?
Let a+b = x


Let a-b = y, the you have


ln x + ln y - 5 ln c = ln[xyc^(-5)] = ln[(a+b)(a-b)c^(-5)]

buy flowers

No comments:

Post a Comment