find the 12th term of an ap 12,9,6,.
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Answered by
1
Answer:
-21
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Answered by
0
Answer:
a= 12
d= 9-12
d=-3
n=12
an = a+ (n-1)d
an = 12 + (12-1) -3
an = 12+(11)×-3
an=12+-33
an=12-33
an=-21
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