Find the number of terms of the following A.P 18,31/2, 13…………………, -47
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4
Answer:
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Answered by
1
Answer:
27
Explanation:
a: 18
d: -5/2
l: -47
n :?.
an - 18+(n-1)-5/2
-47-18 = (n-1) -5/2
-65x2/-5 = n-1
27 n=
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