1)Find the sum of first 1000 positive integers.
please give some step by step answer it means a lot to me ​

2 thoughts on “1)Find the sum of first 1000 positive integers.<br />please give some step by step answer it means a lot to me ​”

1. Answer:

   500500

   Step-by-step explanation:

   To find out the answer, we must apply the formula, [tex]\frac{n(n+1)}2[/tex]

   Over here, n = the number of integers, which in this case is 1000.

   Now lets apply the formula and solve the question:

   [tex]\frac{n(n+1)}2[/tex] = [tex]\frac{1000(1000+1)}2[/tex]

   = [tex]\frac{1000(10001)}2[/tex]

   = [tex]{500*1001}[/tex] – I have cancelled 2 and 1000

   = 500500

   Thus, the sum of the 1st 1000 positive integers are 500500

   _________________________

   Hope it helps

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2. formula n(n+1)/2

   just substitute n= 1000

   1000(1000+1)/2

   1000*1001/2

   500*1001

   500500 final answer

   Reply