帮我解方程组{X平方/4-Y平方=1 ,X-Y-2=0
问题描述:
帮我解方程组{X平方/4-Y平方=1 ,X-Y-2=0
答
X^2-Y^2=1即(X+Y)(X-Y)=1即(X+Y)=1/2 X-Y=2 解得 X=5/4 Y=-3/4
帮我解方程组{X平方/4-Y平方=1 ,X-Y-2=0
X^2-Y^2=1即(X+Y)(X-Y)=1即(X+Y)=1/2 X-Y=2 解得 X=5/4 Y=-3/4