Question

calcule o décimo termo da PG (8, -16, 32, ...)

Answer 1

q= a2/a1
q= -2


An= a1.(Q^n-1)
A10= 8.(-2^9)
A10= 8.(-512)
A10= -4096

Answer 2

8 * 2 = 16
16*2 = 32
32*2 = 64
64*2 = 128
128*2=256
256*2=512
512*2=1024
1024*2=2048
2048*2=4096
4096*2=8192
(8,16,32,64,128,256,512,1024,2048,4096)