Maths paper 5 Gunshot Questions -10M

 Maths paper 5 *Gunshot* *Questions -10M* 

***1. Let V(F) be a vector space. A non empty set WV. Prove that the necessary and sufficient condition for W to be a subspace of V is a, b€F and α,β€W⇒aα+bβ€ W.***

Or

Let V(F) be a vector space and Let W ⊆ V The necessary and sufficient conditions for W to be a subspacer of V are i α€W,β€W⇒α-β€W,

ii.α€W,α€F⇒aα€W?

Or

b) If W, and W, are two subspaces of a vector space V(F) then prove that W+W, is a subspace of Vand W+W=<W, W₂>

2. If W, and W, are two subspaces of a finite dimensional vector space V(F) then prove that dim (W1+W2)= dim W1+dim2 W-dim (W1∩W2)?

Or

*****If W is a subspaces of a finite dimensional vector space V(F) then prove that dim (V/W)= dim V-dim W?*****

3.Rank Nullity Theorem?

4.Cayley-Hamilton Theorem?

5.Bessels Inequality?

Or

6.Schwartz's Inequality?

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