Question

997^2 + 998^2 + 999^2 - 997×998 - 998×999 -999×997

Answer 1

ans is 3 in this equation

Answer 2

Hey Mate
here is your answer.............


$= {997}^{2} + 998^{2} + {999}^{2} - 997 \times 998 - 998 \times 999 - 999 \times 997 \\ \\ = 994009 + 996004 + 998001 - 995006 - 997002 - 996003 \\ \\ = 2988014 - 2988011 \\ \\ = 3$