1.1 练习:已知x²∈{0,1.x},求实数x的值
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1.1 练习:已知x²∈{0,1.x},求实数x的值
1.1 练习:已知x²∈{0,1.x},求实数x的值
1.1 练习:已知x²∈{0,1.x},求实数x的值
x²∈{0,1,x}
x=-1
x^2=1∈{0,1,x}
=> x=-1
1.1 练习:已知x²∈{0,1.x},求实数x的值
1.1 练习:已知x²∈{0,1.x},求实数x的值
1.1 练习:已知x²∈{0,1.x},求实数x的值
x²∈{0,1,x}
x=-1
x^2=1∈{0,1,x}
=> x=-1