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.? Given f(x)=7x^2-3 and g(x)=1-2x find f(g(x)).? Find the center and radius of the circle defined by the equation x^2+y^2-6x+2y-6=0.? How many bromines atoms are present in 32.4 g of CH2Br2? How many milliliters of a stock solution of 12.0 M HNO3 would you have to use to prepare 0.500 L of 0.200 M HNO3?