3. Show that ||x||0 max{x1 ,.. Xn|B where x = (x1,.., Xn ) E !! %3D...

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3. Show that ||x||0 max{\x1 ,.. Xn|B where x = (x1,.., Xn ) E !! %3D R", is a norm in R". 21 4. Let A = calculate ||A||. y ||A-1|| and calculate the condition 1.0001 of matrix A K(A) = ||A|| ||A || 3. Show that ||x||0 max{\x1 ,.. Xn|B where x = (x1,.., Xn ) E !! %3D R", is a norm in R". 21 4. Let A = calculate ||A||. y ||A-1|| and calculate the condition 1.0001 of matrix A K(A) = ||A|| ||A ||