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MATEMÁTICA , ALGUÉM ME AJUDA ?
1) Calcule o valor da expressão y= i+i²+ i³+i(elevado a 4)+ i( elevado a 5)+ …+ i ( elevado a 1003)
2)Calcule a potência ( 1- i)¹¹
3)Determine x, real, de modo que o número,z=2-xi/1+2xi seja imaginário puro
4)
M= 3 4 2 1
5 0 -1 -2 Determine o valor do determinante da Matriz M, utilizando o teorema de Laplace:
0 0 4 0
-1 0 3 3
5) Qual das afirmativas abaixo é falsa? Justifique
a)Det[a+b]= (det A) + (det B)
b)det A= det(At)
c)(det A).(det A-¹)= 1
d) det (A.B)= (det A). (det B)
e)(det A)(det At)=(det A)²
6) Calcule (3 4 6 0 1 0 2 1 2 -1 4 2 5 3 10 3 ) matriz 4×4
7) Sendo A uma matriz de ordem 4 e det(A) = 5 , calcular det ( 2At)
8)Determine os valores de x,y e z
2x+4y-z=2
-x-3y-2z=4
3x-y-4z= -3
9)Determine o valor de a e b para que o sistema seja possível e indeterminado
ax+2y=5
3x-2y=b
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