Ifu = fx+ ay) + g(x - ay), then choose the correct answer in the following: 0u0-u (a) ax2 0y (b) = 0 ox2 c)a+ =o o a ob o d du ifu = f(x, y) and x =xiy = px) th

Ifu = fx+ ay) + g(x - ay), then choose the correct answer in the following: 0u0-u (a) ax2 0y (b) = 0 ox2 C)a+ =o O a Ob O d du Ifu = f(x, y) and x =xiy = px) then is equal to dy (a) 8x ôy dx (b) +Ou d (6x dx ay dx Ou Ou ay ()xay dx (d) Both (b) & (c)