Question #6ed7e

1 Answer
Jan 12, 2017

Given f(x) = 1/logx and g(x) = 1/8 +xf(x)=1logxandg(x)=18+x

We have

(fxxg)(x) = (1/logx)xx(1/8+x)(f×g)(x)=(1logx)×(18+x)

=>(fxxg)(x) = (1/8+x)/logx(f×g)(x)=18+xlogx

(fxxg)(x)(f×g)(x) will be defined when

logx!=0=>x!=1logx0x1
and x>0 and x in Rx>0andxR

So option (c) is valid here.