MATA33H3 Study Guide - Midterm Guide: Gaussian Elimination, Feasible Region

• School: UTSC
• Department: Mathematics
• Course: MATA33H3
• Professor: All

Document Summary

Examiners: e. moore: pham, selick, [6 points] let a = (cid:20) 1 2 2 3 (cid:21) 2 b) 1 c(cid:1) (b) det(cid:0)( 1 (c) det(cid:0)a b c(cid:1)t : [5 points] let a = (a t i) is not invertible. Suppose that store a orders 25 tv sets and store b orders 30 tv sets. Suppose also that warehouse c has 45 tv sets and warehouse d has 40 tv sets available. Find the best way to ll these two orders so as to minimize cost, and nd the minimum cost. Mata33h: [18 points] (a) let a = Use row reduction to determine if a is invertible. Show all your work and indicate the row operations used. (b) solve the linear system: x 3y + 2z. 2x + 6y 3z + w = 0. + 3w = 0: [15 points] use row reduction to solve the linear system: x + y + 2z w =