Question

Which
of the
following set is not a subspace
of the vector space R(R)?
a) f(x,x,x): XER}
b) {(X,y,z): 2x+4y-2z=0}
c) None
d) {(x, y, z): x^2+y^2+z^2= 0}
e) {(X,y, z)= x+y=0, z=1}​

Answer 1

Answer:

Which

of the

following set is not a subspace

of the vector space R(R)?

a) f(x,x,x): XER}

b) {(X,y,z): 2x+4y-2z=0}

c) None

d) {(x, y, z): x^2+y^2+z^2= 0}

e) {(X,y, z)= x+y=0, z=1}

I don't noo