(753 x 753 + 247 x 247 - 753 x 247)/(753 x 753 x 753 + 247 x 247 x 247)=?	Choose the correct choice from the following.
A) 1 / 1000 B) 1 / 506 C) 253 / 500 D) 253 / 1000 E) None of these
Given Exp. =(a^2 + b^2 - ab)/(a^3 + b^3)	= 1/(a + b) = 1/(753 + 247) =1/1000   1 / 1000nswer:1 / 1000
<result>A</result>
(753 x 753 + 247 x 247 - 753 x 247)/(753 x 753 x 753 + 247 x 247 x 247)=?