The mean of (54,821)^2 and (54,823)^2 = Choose the correct option.
A) (54,821)^2 B) (54,821.5)^2 C) (54,820.5)^2 D) (54,821)^2 + 1 E) (54,822)^2 + 1
54821^2 = (54822-1)^2 = 54822^2 + 1^2 - 2*54822*1   54823^2 = (54822+1)^2 = 54822^2 +1^2 + 2*54821*1   Taking the average of above 2 , we get (54822)^2 +1   hence the answer is (54,822)^2 + 1
<result>E</result>
The mean of (54,821)^2 and (54,823)^2 =