Question

Quick i need help with math problems​

Answer 1

Explanation:

a). 1 + 3 = 4

1 + 3 + 5 = 9

1 + 3 + 5 + 7 = 16

1 + 3 + 5 + 7 + 9 = 25

b). formula for Sn = n×n or n².

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