X 2 6xy 9y 2 4x 12y 5 0 July 8, 2019 16 32 64 128 6xy - 4y + 6 - 9x (x ^ 2 + 6xy + 9y ^ 2)/(4x ^ 2 + 12xy) при x = 0 2 y = 0 6 4) (x ^ 2 + 6xy + 9y ^ 2)/(4x ^ 2 + 12xy) при x = 0 2 y = 0 6
