GP - 8 items

Determine the first eight members of a geometric progression if a9=512, q=2

Correct answer:

a1 =  2
a2 =  4
a3 =  8
a4 =  16
a5 =  32
a6 =  64
a7 =  128
a8 =  256

Step-by-step explanation:

a9=512 q=2 a9 = a1   q8 a1=a9/q8=512/28=2
a2=q a1=2 2=4
a3=q a2=2 4=8
a4=q a3=2 8=16
a5=q a4=2 16=32
a6=q a5=2 32=64
a7=q a6=2 64=128
a8=q a7=2 128=256



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