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Find the 20th term from the last term of the AP:3,8,13.....,253????? |
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Answer» My dought is clear Tq frnds L =(n-1)(d)= 253-(19)×5= 253-95=158 Use formula : l -(n-1)d 158. T20=98 An = l-(n-1)d => 253-(19)×5 => 253-95 => 158 158 |
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