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clarencenepomuceno
@clarencenepomuceno
October 2022
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2),find the sum of the first 8 term if a¹ = 2 and r = -4
pa help po:(
Answers & Comments
rubycadelina3
Step-by-step explanation:
Correct option is D.510
Given, a1=2,r=2
Sn=r−1a1(rn−1)
S8=2−12(28−1)
=12(255)
=510
2 votes
Thanks 1
clarencenepomuceno
tnk you po:)
rubycadelina3
wc
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Answers & Comments
Step-by-step explanation:
Correct option is D.510
Given, a1=2,r=2
Sn=r−1a1(rn−1)
S8=2−12(28−1)
=12(255)
=510