Question: ={[:] Let U = r. s in R. Show that U is a subspace of R, find a basis, and calculate dim U.

={[:] Let U = r. s in R. Show that U is a subspace of R, find a basis, and calculate dim U.

={[:] Let U = r. s in R. Show that U is a subspace of R, find a basis, and calculate dim U.

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