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Q: The additive inverse of sum of all the integers from -423 to 420 is -------

Asked by chandrasiddub 2nd October 2019, 11:10 PM
Answered by Expert
Answer:
Sum of all integers from -423 to 420 is the same as the sum of -423, -422, -421 because -420+(-419)+(-418)+ ... -1+0 +1+2+3+..+420 = 0
Now, -423+(-422)+(-421)=-1266
Additive inverse is such that a+b=e where e is the additive identity
In this case, additive identity is 0
And -1266+1266=0 
Therefore, additive inverse of -1266 is 1266.
Answered by Expert 3rd October 2019, 10:23 AM
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