Vecor Spaces and Linear Combinations
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Let V be the space of all functions from R to R. It was stated in the discussion session that this is a vector space over R
Let F be a field, V a vector space over F, and v1,...,vk vectors in V. Prove that the set Span({v1, ..., vk}) is closed under scalar multiplication.
1. Label the following statements as true or false
a) The zero vector is a linear combination of any nonempty set of vectors
b) If S is a subset of a vector space V, then span (S) equals the intersection of all subspaces of V that contain S..
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• Let V be the space of all functions from R to R. It was stated in the discussion session that this is a vector space over R
• Let F be a field, V a vector space over F, and v1,...,vk vectors in V. Prove that the set Span({v1, ..., vk}) is closed under scalar multiplication.
1. Label the following statements as true or false
a) The zero vector is a linear combination of any nonempty set of vectors
True: take the linear combination with all the coefficients =0
b) If S is a subset of a vector space V, then span (S) equals the intersection of all subspaces of V that contain S..
True. It is clear that if W is a subspace containing S, then it contains span(S) ...
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