find first negative term from following A.P.
122,116,110,....
(Note: find smallest n such that tn<0.
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9
hope it help you my friend.
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Answered by
4
Answer:
-4
Step-by-step explanation:
a=122( first term)
d= -6(common difference that is 116-122)
an=0
an formula
an=a+(n-1)d
0=122+(n-1)-6
0=122-6n+6
6n=128
n=21.33
So,n=22
a(22)=a+21d
a(22)=122+21(-6)
a(22)=122-126=-4
So,-4 is the first negative term
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