The sequence

Find the nth term of the progression 2,6,12,20...

Correct answer:

a = n*(n+1)

Step-by-step explanation:

a1=2 a2=6 a3=3 (3+1)=12 a4=4 (4+1)=20 a5=5 (5+1)=30 a6=6 (6+1)=42  an=n(n+1)  a=n (n+1)



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Showing 1 comment:
Purna
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