if first term of a sequence is 2 and the 7 term is 15 what would be the 20 term
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Answer:
Step-by-step explanation:
a = 2
an = a + (n-1)d
15 = 2 + (7-1)d
15-2 = (7-1)d
13 = 6d
d=13/6
an(for 20 th term) = 2 + (n-1)13/6
= 2+13n/6 - 13/6
solve this u will get your answer
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