- Grading question. I do reward best answer.?

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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.? One race car has greater acceleration than second race car.But the second race car can reach a higher speed than first.How is this possible? If A' is the image of A and line k is a perpindicular bisector of AA', sketch the figure and describe the transformation? What will happen when nibiru comes? Compre un auto , firme y dieron salida, ahora llaman y dicen que no debería llevar rines de aluminio, quieren que los regrese, ¿que procede?