NCERT Class XI Mathematics - Linear Inequalities - Solutions

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Question : 10
Total: 65
x
3
>
x
2
+1
Solution:  
The inequality is
x
3
>
x
2
+1

Transposing
x
2
to L.H.S., we get
x
3
x
2
> 1
Simplifying,
2x3x
6
> 1 or -
x
6
> 1
Multiplying both sides by – 6, we get x < – 6
∴ The solution is (– ∞, – 6).
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