The pattern in this sequence is that each term is the sum of two consecutive natural numbers. So the sequence can be written as:
1, 3, 5, 7, 9, 11, 13, 15, 17, 19
To find the sum of this sequence, we can use the formula for the sum of an arithmetic series:
S = n/2 * (first term + last term)
where n is the number of terms in the sequence.
In this case, n = 10 and the first term is 1, the last term is 19. Plugging in these values, we get:
S = 10/2 (1 + 19)S = 5 20S = 100
Therefore, the sum of the sequence 1+3+5+7+9+11+13+15+17+19 is 100.
The pattern in this sequence is that each term is the sum of two consecutive natural numbers. So the sequence can be written as:
1, 3, 5, 7, 9, 11, 13, 15, 17, 19
To find the sum of this sequence, we can use the formula for the sum of an arithmetic series:
S = n/2 * (first term + last term)
where n is the number of terms in the sequence.
In this case, n = 10 and the first term is 1, the last term is 19. Plugging in these values, we get:
S = 10/2 (1 + 19)
S = 5 20
S = 100
Therefore, the sum of the sequence 1+3+5+7+9+11+13+15+17+19 is 100.