Svar Övning 7.1.1
SamverkanFlervariabelanalysLIU
(Skillnad mellan versioner)
(En mellanliggande version visas inte.) | |||
Rad 4: | Rad 4: | ||
b) | b) | ||
- | <math>f'_x= | + | <math>f'_x=6xy^3(x^2y^3+y)^2</math>, |
- | <math>f'_y= | + | <math>f'_y=3(3x^2y^2+1)(x^2y^3+y)^2</math> |
c) | c) | ||
<math>f'_x=\frac{-2y}{(x-y)^2}</math>, | <math>f'_x=\frac{-2y}{(x-y)^2}</math>, | ||
<math>f'_y=\frac{2x}{(x-y)^2}</math>. | <math>f'_y=\frac{2x}{(x-y)^2}</math>. |
Nuvarande version
a) \displaystyle f'_x(x,y)=1+y^3+5x^4y^2, \displaystyle f'_y(x,y)=3xy^2+2x^5y+4y^3
b) \displaystyle f'_x=6xy^3(x^2y^3+y)^2, \displaystyle f'_y=3(3x^2y^2+1)(x^2y^3+y)^2
c) \displaystyle f'_x=\frac{-2y}{(x-y)^2}, \displaystyle f'_y=\frac{2x}{(x-y)^2}.