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  3. a = （1 −7 5 0 0 10 8 2 2 4 10 3 −

A = （1 −7 5 0 0 10 8 2 2 4 10 3 −4 8 −9 6） (1) Count...

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Question

Statistics

A =
（1 −7 5 0

0 10 8 2

2 4 10 3

−4 8 −9 6）

(1) Count the number of rows that contain negativecomponents.
(2) Obtain the inverse of A and count the number of columns thatcontain even number of positive components.
(3) Assign column names (a,b,c,d) to the columns of A.
(4) Transform the matrix A into a vector object a by stackingrows.
(5) Replace the diagonal components of A with (0,0,2,3). Hint: usea “diag” function

Answer & Explanation Solved by verified expert
4.3 Ratings (664 Votes)
A matrixc102471048581090236ncol4nrow4A 1 2 3 4 1 1 7 5 0 2 0 10 8 2 3 2 4 10 3 4 4 8 9 6 1 number of rows that contain negative components B A23 B 1 2 3 4 1 1    See Answer
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