EXERCISE 4.11) Find t, for the following A.P.si) 4,9, 14, 19,14 16i) 4 – InterviewSolution

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EXERCISE 4.11) Find t, for the following A.P.si) 4,9, 14, 19,14 16i) 4, 3 3,6,

Answer»

For AP nth termtn = t1 + (n - 1)d

1) Given t1 = 4, d = 9-4 = 5tn = 4 + (n-1)5tn = 4 + 5n - 5tn = 5n - 1

2) Given t1 = 4, d = 14/3 - 4 = 2/3tn = 4 + (n-1)2/3tn = (12 + n - 1)2/3tn = (22 + 2n)/3

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