Find the domain and range for x+1/x for x-10to10
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2
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Answered by
1
Answer:
Step-by-step explanation:
f(x)=
1−x
2
1
As the function f(x) has to be defined at all values of x.
Hence, x ϵ R
+
−{1,−1}
Range ,
y=
1−x
2
1
1−x
2
=
y
1
x
2
=
y
y−1
Hence,
y
y−1
>0
y(y−1)>0
y<0 and y≥1 is the required range
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