Evaluate
[tex]{yx}^{y} - {xy}^{x} [/tex]
for x=
[tex] \frac{1}{2} [/tex]
and y=4




Answer Choices
[tex] \frac{3}{4} [/tex]
[tex] - 1 \frac{3}{4} [/tex]
[tex] \frac{1}{4} [/tex]
[tex] - \frac{1}{2} [/tex]
[tex] - \frac{3}{4} [/tex]