Answer to Question #44927 in Linear Algebra for Anurodh

Question #44927

Let V ={(a,b,c,d) ϵ R^4!a+b+2c+2d = 0} and W = { (a;b;c;d) ϵ R^4!a = -b;c = -d}.
Check that V and W are vector spaces.
Further, check that W is a subspace of V.

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