MAT 211- Midterm Exam Guide - Comprehensive Notes for the exam ( 48 pages long!)
Document Summary
3. 1: system of linear equations with 2 variables. Use the rst equation to solve for y. You manage an ice cream factory that makes two favors: creamy vanilla and continental mocha. Creamy vanilla go 2 eggs and 3 cups of cream, into each quart of continental mocha go 1 egg and 3 cups of cream. Start with the question to assign the variables. 1 quart of cv = 2 eggs x quart of cv. Matrix is a rectangular array of numbers, symbols, expressions arranged in rows and columns. The dimension of this matrix is 2 x 3 (# of rows x # of columns) De nition: two matrices a and b are equal if and only if for i and j (they have to have the same dimensions) Identity matrix: it is a square matrix with main diagonal entries with all 1"s. It is necessary the matrices have the same dimensions.
