which term of the sequence 23,22 1/2 ,22 , 21 1/2 ...... is the fist -ve term
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Answer:
48th term
Step-by-step explanation:
We do this by assuming the nth term to be 0
In this AP,
First term = a = 23
= 0
Common difference = d =
=
=
n =?
= a + (n - 1) d = 0
23 + (n - 1) = 0
23 + = 0
= 0
47 - n = 0
- n = -47
n = 47
Since the 47th term is zero, the first negative term is the 48th term
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