without adding find the sum of the following number l)1+3+5+7+9= 2)1+3+5+7+9+11+13+15+17= 3)1+3+5+7+9+11+13+15+17+19+21+23+25=
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Answer:
1. 5^2 =25
2. 9^2= 81
3. 13^2 = 169
Step-by-step explanation:
count the number after each plus sign and then square it
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