Suppose
f,g:E->R
are measurable functions on a sigma algebra
E
. Show that
h:E->R
defined by
h(x)={((f(x))/(g(x)) if g(x)!=0),(0, If g(x)=0):}
is measurable. 6. Let
Nsub[0,1]
be a non-measurable set. Determine whether the function
f:R->R
defined by
f(x)={(x if xinN),(-x, If x!inN):}
is measurable. Explain