Question

the value of 1+2+3+...............+100 is

Answer 1

Answer:

cvc

Step-by-step explanation:

Answer 2

Step-by-step explanation:

here first term is 1 and comon differece is 1

then sum is ..

s100= n/2{2a+(n-1)×d}

= 100/2 {2×1+(100-1)×1}

=50(2+99×1)

=50×2+99

= 50×101

=5050