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...Matrix algebra this unit is designed to introduce the learners basic concepts associated with will learn about different types of matrices operations determinant and inversion also discusses procedure determining solution system linear equations by using inverse method gaussian cramer s rule some relevant business economic applications are provided in for clear better understanding school blank page bangladesh open university lesson an introduction after studying you should be able state nature a explain representation data define j sylvester was first use word later on arthur cayley developed theory systematic way powerful tool modern mathematics its study becoming important day due wide every arithmetic branch knowledge many tools managerial decision analysis it has role techniques quantitative decisions become quite significant functional areas accounting production finance marketing whenever one dealing there concern organizing them such that they meaningful can readily identified ...