rog seriozitate va rog multt 5 si 6
Răspunsuri la întrebare
Răspuns:
Explicație pas cu pas:
5)
(2x + 129/4) : 5 + 91/2 = 1525/4
(2x + 129/4) : 5 = 1525/4 - 91/2 = 1525/4 - 182/4 = 1343/4
2x + 129/4 = 1343/4*5 = 6715/4
2x = 6715/4 - 129/4 = 6586/4 = 3293/2
x = 3293/2 : 2 = 3293/4
6)
a)
(4/2 - 1/2)^2 : (3/2)^2 = (3/2)^2 : (3/2)^2 = 1
b)
(1 + 1/11*11/9)^2 = (1 + 1/9)^2 = (9/9 + 1/9)^2 = (10/9)^2 = 100/81
c)
[(3/2 - 3/4)^2 - (3/4 - 2/4)^2] : (6/6 - 5/6)^2
= [(6/4 - 3/4)^2 - (1/4)^2] : (1/6)^2
= [(3/4)^2 - (1/4)^2] : 1/36
= (9/16 - 1/16) * 36/1
= 8/16*36/1 = 18
d)
1/2 : (2/2 - 1/2) : [1/5 + 4*(1/3 + 1/3 *1/2)] + 1/11
= 1/2 : 1/2 : [1/5 + 4*(1/3 + 1/6)] + 1/11
= 1 : [1/5 + 4*(2/6 + 1/6)] + 1/11
= 1 : (1/5 + 4*3/6) + 1/11
= 1 : (1/5 + 2) + 1/11
= 1 : (1/5 + 10/5) + 1/11
= 1 : 11/5 + 1/11
= 1*5/11 + 1/11
= 5/11 + 1/11
= 6/11
Explicație pas cu pas:
ai rezolvarea în fotografie