find the sum of 4,9 ,1,4 up to 17 terms
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Step-by-step explanation:
a =4
D = 5
N= 17
Sn n/2+2a+(n-1)d
17/2+2 (4)+(17-1)5
Sn= 17/2+8+80
Sn=17/2+88
Sn = 17×44
Sn=748
Hope this answer will help you
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