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Write the common difference of an A.P. whose nth term is an = 3n + 7. |
Answer» If an = 3n + 7 Then a1 = 3 (1) + 7 = 10 a2 = 3(2) + 7 = 13 a3 = 3(3) + 7 = 16 d= common difference = an – an–1 = a3 – a2 = 16 – 13 = 3 |
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