Mathematics, 30.10.2019 05:31 ksiandua07
Let a be an n × n matrix and suppose that two of the rows of a are equal. use cofactor expansion to prove that det a = 0. hint: start small! prove that this is true for 2×2 matrices, then use the 2 × 2 result to do the 3 × 3 case, etc. more generally, assume it works for (n − 1) × (n − 1) matrices, then prove the n × n case.1
Answers: 1
Mathematics, 21.06.2019 13:30
Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.
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Mathematics, 21.06.2019 19:00
Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.
Answers: 3
Mathematics, 21.06.2019 21:00
Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.
Answers: 1
Let a be an n × n matrix and suppose that two of the rows of a are equal. use cofactor expansion to...
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