Exercícios de estatística

Álgebra Linear Engenharia elétrica Johnatas Cruz 2163249518 Turma A Nos problemas de 1 a 3, calcular os valores de m e n para que as matrizes A e B sejam iguais. 1- A=815n12+m3 e B = 87563 15n=75 n=7515 n=5 12+m=6 m=6-12 n=-6 2- A=m2-40n2+463 e B = 411363 m2-40=41 m2=81 m=81 m=9 n2+4=13 n2=9 n=9 n=3 3- A=784x2 e B = 78410x-25 x2=10x-25 x2-10x+25=0 x=-(-10)±102-4.1.252.1 x=10±02 x=5 Dada as matrizes A2384-1-6, B5-7-9041e C098146 4- Calcular A + B. A2384-1-6+ B5-7-9041=7-4-143-5 5- Calcular B + C. B5-7-9041+ C098146=52-1187 6- Calcular A + C. A2384-1-6+C098146=21216530 7- Calcular A - B. A2384-1-6- B5-7-9041=-310174-5-7 8- Calcular B - C. B5-7-9041- C098146=5-16-17-10-5 9- Calcular A - C. A2384-1-6-C098146=2-603-5-12 10- Calcule X = 4A – 3B + 5C X=4.24.34.84.44.(-1)4.(-6)- 3.53.(-7)3.(-9)3.03.43.1+5.05.95.85.15.45.6 X= 8123216-4-24-15-21-270123+0454052030 X=-7335916-16-27+0454052030 X=-778992143 11- Calcule X = 2B – 3A – 6C X= 10-14-18082-692412-3-18-0544862436 X=4-23-42-121120-0544862436 X=4-77-90-18-1316 12- Calcule X = 4C + 2A – 6B X= 0363241624+46168-2-12-30-42-540246 X=44248121412-30-42-540246 X=-268410212-106 Nos problemas 13 a 15, efetua a multiplicação das matrizes A e X. 13- A=26-54 e X=xy AX=2x6y-5x4y 14- A=123-2-5739-8e X=x1x2x3…