For the AP 71, 68, 65, ... its .........th
term is its first negative term.
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Answered by
28
Answer:
n=25
Step-by-step explanation:
An is the first negative term
An = a+ (n-1)d
= 71 + (25-1)(-3)
= 71 - 24×3
= 71 - 72
= -1
Therefore when n=25 A25 = -1
Answered by
19
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