A= 1+7^1++7^2+7^3+...+7^101
A= (1+7) + (7^2 +7^3) +...........+(7^100+7^101)
A= 8.(1+7^2 +7^4+...+7^100)
=> A chia hết 8
Copyright © 2024 VQUIX.COM - All rights reserved.
Answers & Comments
Verified answer
A= 1+7^1++7^2+7^3+...+7^101
A= (1+7) + (7^2 +7^3) +...........+(7^100+7^101)
A= 8.(1+7^2 +7^4+...+7^100)
=> A chia hết 8