Let be defined by Find a basis for range L. What I did: spans range L but rref of the coefficent matrix has a row of zeros so it's not a spanning set.
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Originally Posted by Jskid Let be defined by Find a basis for range L. What I did: spans range L but rref of the coefficent matrix has a row of zeros so it's not a spanning set. I may be crazy but isn't the image ? Namely, isn't so that etc.
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