Question

rezolvati astaaaa va rooooog va dau 50 de puncte​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

6, 18, 54....

18 = 6*3

54 = 18*3

b1 = 6

q = 3

bn = 6*3^n-1

_____________

b)

2, 1, 1/2.....

1 : 2 = 1/2

1/2 : 1 = 1/2

b1 = 1

q = 1/2

bn = 1*(1/2)^n-1

______________

c)

-1; 1/3; -1/9,....

1/3 : (-1) = -1/3

-1/9 : 1/3 = -1/3

b1 = -1

q = -1/3

bn = -1*(-1/3)^n-1

_________________

d)

√2, 1. √2/2, 1/2,....

1 : √2 = 1/√2

√2/2 : 1 = √2/2 = 1/√2

1/2 : √2/2 = 1/√2

b1 = √2

q = 1/√2

bn = √2*(1/√2)^n-1

__________________

incearca sa rezolvi ultimul subpunct