How
many
terms
of the AP 16, 14, 12...
needed to
give the sum 60 ? explain why we get 2 answer
Answers
Answered by
5
Step-by-step explanation:
a=16
comman different= -2
tn=a+(n - 1) d
=16+(n-1)-2
=16-2n+2
=18 - 2n
2n=18
n = 18/2
n= 9
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