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inverse 11+x2
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Solution
√1−xx,−√1−xx
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Function range definition
The set of values of the dependent variable for which a function is defined
Vertex of 2x2−2:Minimum (0,−2)
For a parabola ax2+bx+cwith Vertex (xv,yv) If a<0the range is f(x)≤yv If a>0the range is f(x)≥yv a=2,Vertex (xv,yv)=(0,−2)