Find the 50th term and sum of first 50 terms of the A.P 11,16, 21, 26, …
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here is the first term is given which is 11 and common difference is 5 and last term is 50 so you can do this by the putting the formula of a n and then the value of d is come so find the value of a from the putting the value of D and then put the formula of sn and find the value of s n Term first 15 terms
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