What is general formula of 0,1,3,6,10,15,21,28,36,45.
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Answer:
1,2,3,4,5,6,7,8,9
Step-by-step explanation:
Add 1 to 00=01
Add 2 to 01=03
Add 3 to 03=06
Add 4 to 06=10
Add 5 to 10=15
Add 6 to 15=21
Add 7 to 21=28
Add 8 to 28=36
Add 9 to 36=45
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