Question

Question #cdbe1

Answer 1

`7log(16/15)-5log(24/25)+3log(81/80)`

`=log(16/15)^7-log(24/25)^5+log(81/80)^3`

`=log(2^4/(3xx5))^7-log((2^3xx3)/5^2)^5+log(3^4/(2^4xx5))^3`

`=log((2^28xx5^10xx3^12)/(3^7xx5^7xx2^15xx3^5xx2^12xx5^3))`

`=log2`