CBSE BOARD X, asked by anushagaraga82, 9 months ago

③ Without adding find the sum of
(i) + 3+5+7+9+11+13
(ii) + 3+5+7+9+1+13+ 15 + 17+19+21

Answers

Answered by chotu8244

Answer:

1+3+5+7+9+11+13=(7)^2=49.

1+3+5+7+9+11+13+15+17+19+21= (11)^2=121 answer.

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