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Hi how to solve this question n(n+1)2 ; where n=9 ​
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3 votes
Hi how to solve this question n(n+1)2
; where n=9


​

User JBoss
by
6.8k points

2 Answers

1 vote

.

Answer:

2×9(9+1)

18(10)

.180.

User Ogggre
by
6.5k points
2 votes

Answer:180

Explanation:

Hi how to solve this question n(n+1)2 ; where n=9 ​-example-1
User Preyas
by
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