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For an A.P ,a=11 and d=1.5 find t13 |
Answer» A13 = 29Step-by-step explanation: GIVENa = 11 d = 1.5 n = 13 ___________________________TO FINDt13 ___________________________We know that, an = a1 + ( n - 1 ) × d a13 = 11 + ( 13 - 1 ) × 1.5 a13 = 11 + 12 × 1.5 a13 = 11 + 18 a13 = 29 a13 = 29___________________________IMPORTANT FORMULASCommon Difference Formula Common Difference FormulaCommon Difference ( D ) = t2 - t1 Arithmetic Sequence Formula Arithmetic Sequence Formulaan = a1 + ( n - 1 ) × d |
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