Объяснение:
F'x = 12x^3y^5+7e^(7x-4y)-20x^4
F'y = 15x^4y^4-4e^(7x-4y)-8y^3
y'=-F'x/F'y
y'=-(12x^3y^5+7e^(7x-4y)-20x^4)/(15x^4y^4-4e^(7x-4y)-8y^3)
Объяснение:
F'x = 12x^3y^5+7e^(7x-4y)-20x^4
F'y = 15x^4y^4-4e^(7x-4y)-8y^3
y'=-F'x/F'y
y'=-(12x^3y^5+7e^(7x-4y)-20x^4)/(15x^4y^4-4e^(7x-4y)-8y^3)