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17. Determine an AP whose third term is 9 and when fifth term is subtracted from sth term, we get 6.OR

Answer»

Let first term is a and common difference is d and nth term is a+(n-1)d9=a+(3-1)da+2d=9a+7d-a-4d=63d=6; d=2a=9-4=5so, AP is 5,7,9,11,13...



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