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Discover Questions

Suppose that A ⊆ B ⊆ V .
(a) Prove that span(A) ⊆ span(B).
(b) Prove that if B is linearly independent then A is linearly independent.? Name a River that begins with the letter K? How long can I store water? What is the chemical formula for road salt? Find the real zeros of f(x)=1/3x^2+1/3x-2/3....?