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Byju's Answer
Standard X
Mathematics
Solving Inequalities
Simplify the ...
Question
Simplify the following:
1
2
(
2
x
−
1
)
≤
2
x
+
1
2
≤
5
1
2
+
x
A
−
1
≤
x
≤
5
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B
1
≤
x
≤
5
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C
5
≤
x
≤
8
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D
None of these
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Solution
The correct option is
A
−
1
≤
x
≤
5
Since,
1
2
(
2
x
−
1
)
≤
2
x
+
1
2
≤
5
1
2
+
x
We have following two cases:
i
)
(
2
x
−
1
)
2
≤
2
x
+
1
2
⇒
2
x
−
1
≤
4
x
+
1
⇒
x
≥
−
1
i
i
)
2
x
+
1
2
≤
√
1
2
+
x
⇒
x
≤
11
2
−
1
2
⇒
x
≤
5
∴
−
1
≤
x
≤
5
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Q.
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(b)
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)
(
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)
(c)
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Q.
6x
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(d) none of these
Q.
Solve the equation:
2
(
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1
x
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−
3
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