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Byju's Answer
Standard XII
Mathematics
Range
The range of ...
Question
The range of the function
f
(
x
)
=
x
+
2
x
+
2
is __________ .
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Solution
f
(
x
)
=
x
+
2
x
+
2
=
x
+
2
x
+
2
;
x
≥
-
2
x
+
2
-
x
+
2
;
x
<
-
2
i
.
e
f
x
=
1
;
x
≥
-
2
-
1
;
x
<
-
2
∴ Range of function f(x) is {−1, 1}
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