find the sum of first 100 whole numbers
Answers
Answered by
2
hey friend your answer
Sn= n/2×2a+(n-1)d
=100/2×2×1+(100-1)1
=50×111
=5550
Answered by
6
Step-by-step explanation:
hey dude here's your answer...
since you want sum of whole number
a=1 t2=2
tn=100
n=?
d=2-1=1
d=1
tn =a+(n-1)d
100=1+(n-1)1
100=1+n-1
n=100
if u want sum of first 100 whole nos
then u have to use Sn formula
Sn =n/2[2a+(n-1)d]
Sn=100/2[2×1+(100-1)1]
Sn=50×2+99
Sn=199
therefore sum of first 100 whole number is 199
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