jika f(x)=3logx² , maka f(x) +f(3/x)=

jawab


f(x)= ³log x²

f(x) = 2. ³log x

f(3/x) = 2. ³log  3/x
= 2. (³log 3 - ³log x)
= 2(1 - ³log x)
= 2 - 2³log x

f(x) + f (3/x) = 2. ³llog x  + 2 - 2. ³log x
f(x) + f (3/x) = 2