find the 10th and 11th triangular numbers find their sum please please please please please please please please please please please please please please please please please please answer for this question who will answer I will mark as a brand list
Answers
Answered by
5
Answer:
pls mark as brainliest friend
Step-by-step explanation:
10th triangular number
The sequence of triangular numbers (sequence A000217 in the OEIS), starting at the 0th triangular number, is. 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...
the 11th triangular number
The sequence of triangular numbers (sequence A000217 in the OEIS), starting at the 0th triangular number, is. 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...
Similar questions