Let f $($x$,$ y$)=$e$^5^4.$ Find f$($x$,$ y$).$

A

f$($x$,$ y$)=(30$x$^4$y$^4)$e$^5^4$

B

f$($x$,$ y$)=(118$x$^5$y$^4)$e$^5^4$

C

f$($x$,$ y$)=(120$x$^4$y$^3)$e$^5^4$

D

f$($x$,$ y$)=(120$x$^5$y$^4)$e$^5^4$

E

f$($x$,$ y$)=(24$x$^5$y$^3)$e$^5^4$Let $f(x,y)=e^{65y4}.$ Find $f_{}(x,y).$

$f_Y(x,y)=(30x^4{y}^4)e^{6x5y4}$

$($B$)f_Y(x,y)=(118x^5{y}^4)e^{6x5y4}$

$f_Y(x,y)=(120x^4{y}^3)e^{6x_{5}y4}$

$($D$)f_{}(x,y)=(120x^5{y}^4)e^{6x5y4}$

$f_y(x,y)=(24x^5{y}^3)e^{6x5y4}$