plzz tell me this yrrrrrrrrr
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reddi625sahu:
8 or 9
8 wala
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apply the.sn formula
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First put the value n=1
So the sum of the first term or basically the first term is 5(by the sn formula)
Then similarly put n=2 so the sum of first 2 no is 14
When we solve for the second part we'll get the common difference 4
AP formed would be 5,9,13,17....
Now use an formula
an=a+(n-1)×d where n is 16
The ans is therefore 65
So the sum of the first term or basically the first term is 5(by the sn formula)
Then similarly put n=2 so the sum of first 2 no is 14
When we solve for the second part we'll get the common difference 4
AP formed would be 5,9,13,17....
Now use an formula
an=a+(n-1)×d where n is 16
The ans is therefore 65
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