Question

provided.
1 + 2 +1 = 4
1 + 2 + 3 + 2 + 1 = 9
1+2 +3 +4 +3 + 2 + 1 = 16​

Answer 1

Step-by-step explanation:

1+2+1=4

3+1=4

Hence proved

1+2+3+2+1=9

3+5+1=9

8+1=9

9=9

Hence proved

1+2+3+4+3+2+1=16

3+7+5+1=16

10+6=16

16=16

Hence proved

Hope it will help you

Answer 2

Answer:

Hope it helped u :)

Step-by-step explanation:

1+2+1=4

3+1=4

1+2+3+2+1=9

3+5+1=9  

8+1=9

9=9

1+2+3+4+3+2+1=16

3+7+5+1=16

10+6=16

16=16

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