Maria buys an air purifier to separate a mixture of dust and allergens from the air, which type of separation method does an air purifier use? A) magnetic attraction B) evaporation C) distillation D) filtration

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning