in AP 13 term is 9 more than its 10th term find the common difference
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as 13 term =a+12d and 10 term =a+9d,sccording to question we get.........
==>a+12d = a+9d + 9
==>12-9d=9
==>3d=9
==>d=9/3
==>d=3
hope u got ur answer.........
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