find the sum of first hundread natural numbers
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find the sum of first hundred natural number
How do you find the sum of the first 100 natural numbers?
Clearly, it is an Arithmetic Progression whose first term = 1, last term = 100 and number of terms = 100. Therefore, the sum of first 100 natural numbers is 5050. 3. Find the sum of first 500 natural numbers.
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Step-by-step explanation:
1,2,3,4,........,100
So the first term of ap=1,common difference=1 and n the term =100
tn=a+(n-1)d
=>100=1+(n-1)×1
=>100-1=n-1
=>99+1=n
=>n=100
Sn=n/2{2a+(n-1)d}
=>Sn=100/2{2×1+(100-1)×1}
=>Sn=50(2+99)
=>Sn=50×101
=>Sn=5050
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