Ques a: which teum
of an AP 2, 7, 12, 17 is 137
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Answered by
2
Step-by-step explanation:
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Answered by
4
a = 2
d = 7-2
= 5
an = 137
an = a + (n-1)d
137 = 2 + (n-1)5
137 = 2 + 5n - 5
137 = -3 + 5n
137 + 3 = 5n
140 = 5n
n = 140/5
n = 28
Therefore, 137 is the 28th term of an AP.
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