Question

Calcule o produto dos seis primeiros termos em cada pg
a) (2,4,8...)
b) (-2,-4,-8...)

Answer 1

2,4,8,16,32,64,128,256....
-2,-4,-8,-16,-32,-64,-128....

Answer 2

A ) an= ª1.Q ^n-1

6 = 2 . 2 ^6-1

6 = 2.2^5

6 = 2.32

6 = 64

B) an= ª1.Q ^n-1

6 = -2.2^6-1

6 = -2 . 2^5 

6 = -2. 32

6 = - 64