Question

Os dez primeiros termos de an=n2-n

Answer 1

n=1, a1=1.1-1=1-1=0
n=2,a2=2.2-2=4-2=2
n=3,a3=3.3-3=9-3=6
n=4,a4=4.4-4=16-4=12
n=5,a5=5.5-5=25-5=20
n=6,a6=6.6-6=36-6=30
n=7,a7=7.7-7=49-7=42
n=8,a8=8.8-8=64-8=56
n=9,a9=9.9-9=81-9=72
n=10,a10=10.10-10=100-10=90