Question

verify dimension theorem for the subspace A&b of R^2 where A= {(a.b.c.d) / a+c-d =0} & B={(x,y,z,w) /x+2y =0}

Answer 1

The rank–nullity theorem is a theorem in linear algebra, which asserts that the dimension of the domain of a linear map is the sum of its rank (the dimension of its image) and its nullity (the dimension of its kernel) .

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