已知:根号下(x-2)+y^2=y-1/4,求y^x的值

问题描述:

已知:根号下(x-2)+y^2=y-1/4,求y^x的值

根号下x-2+y的平方-y+1/4=0
√(x-2)+(y-1/2)²=0
∴x-2=0
y-1/2=0
∴x=2
y=1/2
y^x
=(1/2)^2
=1/4