Mathematics

Mathematics, 22.11.2019 15:31, MaiiR01

Need to know if i answered this correctly it's multiplying matrices.

Need to know if i answered this correctly it's multiplying matrices.

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Mathematics, 01.10.2019 13:30, aamu15

Ireally need with this question on multiplying matrices, i've been stuck on it for over 20 minutes and i'm about to cry (ignore the 240 at the end, it's probably wrong)

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Engineering, 23.10.2019 23:00, cody1097

Diagonal matrices diagonal matrices if a -(aj) is a square matrix, then the entries ai are called diagonal entries. a square matrix is called diagonal if all non-diagonal entries are zeros explore what happens if we add, subtract or multiply diagonal matrices. a and b are the same matrices in previous sections type d-diag(diag(a) ) to create a diagonal matrix from a. type e-diag(diag(b)) to create another diagonal matrix from b. find the following: » a) d+e ? b) d-e » c) de » d) ed answer the following questions . 1.) explain what type of matrix are you getting? » 2.) can you make an statement to generalize this fact? » 3.) is it possible to get a non diagonal matrix from adding or multiplying diagonal matrices? » 4.) can we obtain a diagonal matrix by multiplying two non-diagonal matrices? give an example » 5.) can we obtain a diagonal matrix by adding two non-diagonal matrices? give an example

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Mathematics, 04.11.2019 20:31, laniflower6

Which of the following subsets of m3(ℝ) are subspaces of m3(ℝ)? (note: m3(ℝ) is the vector space of all real 3 x 3 matrices) a. the invertible 3×3 matrices b. the 3×3 matrices with all zeros in the second row c. the diagonal 3×3 matrices d. the 3×3 matrices in reduced row-echelon form e. the 3×3 matrices whose entries are all integers f. the symmetric 3×3 matrices

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Mathematics, 16.11.2019 03:31, finessinsam

Use theorem 4.2.1 to determine which of the following are subspaces of mnn. (a) the set of all diagonal n × n matrices. (b) the set of all n × n matrices a such that det(a) = 0. (c) the set of all n × n matrices a such that tr(a) = 0. (d) the set of all symmetric n × n matrices. (e) the set of all n × n matrices a such that at = −a. (f) the set of all n × n matrices a for which ax = 0 has only the trivial solution. (g) the set of all n × n matrices a such that ab = ba for some fixed n × n matrix b

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