Math, asked by aviralchaturvedi1297, 7 months ago

without doing the actual addition find the sum of 1+3+5+7+9+11+13+15+17+19+21+23+25+27+29+31+33+35+37+39+41

Answers

Answered by manushrilead
1

Answer:

no of odd numbers = 21

sum of odd numbers = 21^2  = 441.

Answer : 441

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