Question

aflati valoare raportului algebric $\frac{ x^{2} - y^{2} }{xy}$ pentru x=1-√3,y=1+√3

Answer 1

x=1-√3
y=1+√3
x²-y²=(1-√3)²-(1+√3)²=1-2√3+3-1-2√3-3=-4√3
xy=(1-√3)(1+√3)=1-3=-2
(x²-y²)/xy=(-4√3)/(-2)=2√3