Question: Please write all steps for proof 3. Suppose span (un, uz} = span (w, w2}, and there are scalars a1, a2, a; with a #

Please write all steps for proof

3. Suppose span (un, uz} = span (w, w2}, and there are scalars a1, a2, a; with a # 0 such that us = anw + a2w2 + aswa. Show that span {u1, u2, us} = span {wi, w2, wa}

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