asked 113k views
3 votes
Hi how to solve this question n(n+1)2
; where n=9




asked
User JBoss
by
8.3k points

2 Answers

1 vote

.

Answer:

2×9(9+1)

18(10)

.180.

answered
User Ogggre
by
8.0k points
2 votes

Answer:180

Explanation:

Hi how to solve this question n(n+1)2 ; where n=9 ​-example-1
answered
User Preyas
by
7.5k points

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