What will be the sum of the first 35 odd natural numbers
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the first 35 odd numbers are
1,3,5,7,.........35th term
now ....
- a=1
- d=3-1=2
therefore the 35 th term is
- l=a+(35-1)d=1+34(2)=69
- now the sum of first 35 odd terms ....
- =35(a+l)/2={35×70)/2=35×35=1225
the ANSWER is 1225.......
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