Problema Solution
f(x)=x1/4
x=625,-12
(a)f(625)=
(b)f(625) is not a real number
(a)f(-12)=
(b)f(-12) is not a real number
Answer provided by our tutors
f(x)=x1/4
f(625)=6251/4=√(√625)=√25=5 which is a rela number
but
f(-12)=√(√-12) cannot be computed except as complex number hence produce unreal numbers