Expression 1: Start product from "n" equals 0 to 10, end product, "x" squared plus "y" squared minus left parenthesis, cot to the negative 1st power left parenthesis, StartFraction, "x" Over "y" , EndFraction , right parenthesis plus pi floor left parenthesis, "n" , right parenthesis , right parenthesis squared equals 010∏n=0x2+y2−cot−1xy+πfloorn2=0