In: Advanced Math
1. Show that the set of all polynomials of deg=2 is not a vector space over reals.
can this be fixed, can we have a set of polynomials that is a vector space over reals?
2. Show that the set of 2x2 matrices with m_22 = 1 is not a vector space over reals.
3. Show that the set of infinitely-differentiable real functions is a a vector space under pointwise function addition, and pointwise scalar multiplication as defined in class, is a vector space over reals.
4. Show that the set of infinitely differentiable real functions such that f(0)=2, is not a vector space over reals.
please answer 1-4 thankyou