write the next triangular number after 3,6,10,15
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0
answer:21
the next triangular number after 3,6,10,15 is 21
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1
Answer:
so your answer is here
Step-by-step explanation:
0,1,3,6,10,15,21,28,36,45,55,
66,78, and so many number
so your answer is in this photo
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