-1+2-3+4-5+6-7+........+1000 =
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Hi Friend !!!
Here is ur answer !!!
-1+2-3+4-5+6-7+......+1000
= (2+4+6 +...1000)-(1+3+5+....999)
= 250,500-250,000
= 500
Hope it helps u :-)
Here is ur answer !!!
-1+2-3+4-5+6-7+......+1000
= (2+4+6 +...1000)-(1+3+5+....999)
= 250,500-250,000
= 500
Hope it helps u :-)
ashok1288:
thnkuuu so muchh
u r most welcome
sum of all even no. formula he kya ..
250,500 jo hua he..direct formula na
nooo
n/2 [2a+(n-1)d]
ooppss..then hv to count..
oo..this formula thnkuuu
:-)
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