Question

Msion History: WeBWork: NIC MAT O nicwebwork.ca/webwork2/NIC MAT_151/Matrices/10/?user= 182213&key=EQ1RZWFKyCSLaWYByMQfa0AN MAA MATHEMATICAL ASSOCIATION OF AMERICA Work INU webwork / nic mat 151 / matrices / 10 Sets Matrices: Problem 10 em 10 Previous Problem Problem List gs Next Problem lems (1 point) If A = -3 -19 -5 28 Then A = Given b b. solve Ar Note: You can earn partial credit on this problem. Preview My Answers Submit Answers Do more with Microsoft Edge - the fast, new browser built for Windows 10. Change my defa

Answer 1

2 8 A = Now at So A = dag idj A 1-3 -19 TAI L 4 8 281 IAI 1 2 8 1-3 -5 191 4 S 28 -11-5X28 + 19x8) – 2( 3 X 28 + 4x19) +81-24 +20) = 12 + 16 +(-32) 1-3 So, at exist . adj Az 1-5 mis a HER -19 28 Nono 1-3 -191 4 28 : + 1 2 + / 28 - 35 1-5 tal 1-3 191 Ft (-5% 28 + 19x8) (-3828 +4x19) +(-388 +265)7T 7- (2x 28 ~ 8x8) + (28 - 4x8) -(8-8) [ + (-2819 +8x5) -(-19+24) +(+5+B) 8 -47 T 12 8 27 es é o y adj A 8 27 -4 -5 0 1 -3 -2 -E -2 1 0 - 514 -1/4 /A) 1-4

let us Consider the system Axzb where bet . Axzb Since At exist multipling both side by At waget, AT(A x) = Atb 2 CATA) x 2 Atb Cassociativity) » Ina Atb (ATA ZAAT-I) -5-3 1-2 -2 1 -1/27 574 -Bx5 - 2x5 - 1/2 x 4 -2x5 + 1x5 + 5/4x4 145 + 0x5 - 1/4 x 4 ] 7-15-10- 27 -10 + 5 +5 15 to-1