Question

Write the first four triangular numbers

Answer 1

0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, 325, 351, 378, 406, 435, 465, 496, 528, 561, 595, 630, 666...


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Answer 2

Answer:

1st four triangular numbers are:

Step-by-step explanation:

1,3,6,and 10