. = a 'a M. Hameed 5 October 2019 Example = - PowerPoint PPT Presentation

Matrix Inverse rows → column S T size 2x2 Square M. A. Hameed ECSE Department Rensselaer Polytechnic Institute Intro to ECSE

Invert A 2x2 to determine A -1 → adj agate . 𝑩 −1 = 1 𝑩 = 𝑏 𝑐 𝑩 𝑏𝑒𝑘 𝑩 I I 𝑑 𝑒 2x z = determinant 𝑩 = 𝑏𝑒 − 𝑐𝑑 1 - 𝑒 −𝑐 𝑩 −1 = 𝑏𝑒 − 𝑐𝑑 −𝑑 𝑏 = [ 𝑒 −𝑐 ad÷ . ¥ 𝑏𝑒𝑘 𝑩 = a 'a÷ −𝑑 𝑏 ÷ ÷ M. Hameed 5 October 2019

Example 𝐵 = 1 2 det CA ) IAI = 3 4 2×2 - 6 4 -2 = = £43 - I ] adj CA ) - - = E : - i ] = I ' A- ' * a = M. Hameed 5 October 2019 5 October 2019