Question 26
If the answer is not an integer, give the nearest integer. If the calculated answer has more than five digits, give its last five digits.
Lines $L_1:20x+18y=\sqrt{2561}$ and $L_2:18x+20y=\sqrt{2018}$ intersect at $(a,b)$. Which integer is nearest to $a^2-b^2$?
Lines $L_1:20x+18y=\sqrt{2561}$ and $L_2:18x+20y=\sqrt{2018}$ intersect at $(a,b)$. Which integer is nearest to $a^2-b^2$?