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Unit Test 9 - Unit 09 Readiness Test Version A Unit 09...

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Unit 09 Readiness Test Version A Unit 09 Readiness Test 1. Create a matrix  with non-zero elements and then figure out the sum of  the eigen values of the matrix using the trace() command. Verify your  answer   by   printing   the   eigen   values   using   the   appropriate   alternate  command and summing them. >> A=[1 6;2 9]; >> B=trace(A); >> [A(1,1)+A(2,2),B] ans =     10    10 2. Create a 3 X 5 matrix with the first row and the third row having threes and  the second row having fours. You are allowed to only use the   ones()  command to create your matrix. You need to modify the output of the  ones() command to generate the required matrix. Next, consider each  element in the matrix and if the element is three, output “The element is 3”  and if not, output “The element is 4”.
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