1. (10 points) Suppose that U and W are subspaces of a vector space V such...
QUESTION 8 Let V = U ㊥ W where V is a finite-dimensional vector space over a field F, and U and w are subspaces of V. Suppose U1 and U2 are subspaces of U and Wi and W2 are subspaces of W Show that QUESTION 8 Let V = U ㊥ W where V is a finite-dimensional vector space over a field F, and U and w are subspaces of V. Suppose U1 and U2 are subspaces of U...
Suppose V=U OU', where V is some vector space and U, U' CV are subspaces. Let W CV be another subspace. Show that W = (UNW) e (U' NW)
6. (a) Suppose that Wi and W2 are both four-dimensional subspaces of a vector space V of dimension seven. Explain why W1 n W3 {0 (b) Suppose V is a vector space of dimension 55, and let Wi and W2 be subspaces of V of dimension 36 and 28 respectively. What is the least possible value and the greatest possible value of dim(Wi + W2)?
Let V be a vector space over a field F, and let U and W be finite dimensional subspaces of V. Consider the four subspaces X1 = U, X2 = W, X3 = U+W, X4 = UnW. Determine if dim X; <dim X, or dim X, dim X, or neither, must hold for every choice of i, j = 1,2,3,4. Prove your answers.
Suppose that U and V are subspaces of a vector space W. Then UnV is a subspace of both U and V, and U and V are both subspaces of U +V. Show that (U+ V)/U ~ V/(UnV) Suppose that U and V are subspaces of a vector space W. Then UnV is a subspace of both U and V, and U and V are both subspaces of U +V. Show that (U+ V)/U ~ V/(UnV)
9) Consider a vector space W where dim W= m (m-dimensional) Assume two subspaces V1, V2 such that dim (V1) = m-1 =dim (V2). now show that if V1#V2 , then we have dim(V1, V2) = m – 2.
Let W1 and W, be the subspaces of a vector space V. Show that WinW, is a subspace of V.
Q10 10 Points Please answer the below questions. Q10.1 4 Points Let m, n EN\{1}, V be a vector space over R of dimension n and (v1,..., Vm) be an m tuple of V. (Select ALL that are TRUE) If m > n then (v1, ..., Vy) spans V. If (01,..., Vm) is linearly independent then m <n. (V1,..., Um) is linearly dependent if and only if for all i = 1,..., m we have that Vi Espan(v1,..., Vi-1, Vi+1,...,...
a. Let W and X both be subspaces of a vector space V. Prove that dim(WnX) > dim(W) + dim(X) - dim(V) b. Define a plane in R" (as a vector space) to be any subspace of dimension 2, and a line to be any subspace of dimension 1. Show that the intersection of any two planes in R' contains a line. c. Must the intersection of two planes in R* contain a line?
Q4 (5 points). Let V be a vector space with two subspaces S and T. Assume that dim(S) = dim(T) = 2 and SnT (O). Show that dim(V) 24