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## Discrete Math Unit 1 and 2 ReviewAuthor: Sturdivant VictoriaDescription: match each to its correct pair.Keywords: , , , , , , online teachingContent:Definitions: 0. How do I solve a system by matrices 1. transpose a matrix 2. inverse of matrix A 3. determinant 4. whole numbers only 5. when is the inverse undefined 6. ways to solve systems of equations 7. when can I multiply a scalar by a matrix 8. What is a row matrix? 9. inverse of a matrix 10. How do I find the resulting dimensions from matrix multiplication 11. integers only 12. When can I multiply matrices 13. irrational numbers 14. rational numbers 15. natural numbers only Answers: 0. 0, squrt (25), 4 1. squrt(2) squrt (8) 2. use the row of the first matrix and the column of the second matrix. 3. this is always defined, just multiply b a constant 4. when the row of the second matrix equals to column of the first matrix 5. ad-bc 6. substitution elimination matrices graping 7. -5, 0, 4 squrt (64) 8. (1/ad-bc) times [d -b] [-c a] 9. .5, -1.5, 0, 10 squrt (100) 10. Inverse of the coefficient matrix times the constant matrix 11. when the determinant is 0. 12. switch the rows and columns 13. A^-1 14. 5, squrt (36), 10 15. when the dimensions are 1x4 |