Question: Show that each of these is not a vector space. (Check closure by listing two members of each set and trying some operations on them.)

Show that each of these is not a vector space. (Check closure by listing two members of each set and trying some operations on them.)
(a) Under the operations inherited from R3, this set

Show that each of these is not a vector space.

(b) Under the operations inherited from R3, this set

Show that each of these is not a vector space.

(c) Under the usual matrix operations,

Show that each of these is not a vector space.

(d) Under the usual polynomial operations,
{a0 + a1x + a2x2 | a0, a1, a2 ˆˆ R+}
where R+ is the set of reals greater than zero
(e) Under the inherited operations,

Show that each of these is not a vector space.

a 1 hl a, b,c E R E R2x +3y 4 and 2x y 3 and 6x +4y 10)

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