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```
a(a-1)(a+1)(a-2) > 0how does this imply –a is less than -1 , a is greater than 2 , 0 is less than a and a is less than 1 Please explain..

```
2 years ago

2074 Points
```							applying wavy curve method (which is usually taught in coaching classes and can also be found in rd sharma jee mathematics), we see that the real line is divided into 5 parts by -1,0,1,2.so, a is less than -1, or between 0 to 1, or grater than 2.
```
2 years ago
Deepak Kumar Shringi
4404 Points
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2 years ago
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### Course Features

• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions