sugamsapkota879 sugamsapkota879 21-05-2023 Mathematics contestada (c ^ 2 - (a - b) ^ 2)/(a ^ 2 - (b + c) ^ 2) + (a ^ 2 - (b - c) ^ 2)/(b ^ 2 - (c + a) ^ 2) + (b ^ 2 - (c - a) ^ 2)/(c ^ 2 - (a + b) ^ 2)
