Question

Of Find
the sum of
1+ 2+ 3+ 4+...o 10
the
series​

Answer 1

1+2+3+4+5+6+7+8+9+10= 55-----answer

Answer 2

Answer:

55

Step-by-step explanation:

sum of 1+2+3+4+........+10=?

we know that sum of n natural numbers =n(n+1)/2

here,n=no.of numbers in the series

in this problem,n=10

=sum of 1+2+3+4+........+10

=n(n+1)/2

=10(10+1)/2

=10(11)/2

=110/2

=55