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The number of real roots of |x|^3 – 3(x)^2 + 3|x| – 2 =0 is 1)1 2)2 3)3 4)none of these
The number of real roots of  |x|^3  – 3(x)^2  + 3|x| – 2 =0  is 1)12)23)34)none of these

```
2 years ago

Tony
13 Points
```							By differentiating ,equation becomes          3x^2-6x+3=3*(x-1)*(x-1).So,at x =1, the above eq will be zero and hence it will be a turning point for the graph of the given equation.As( x-1) is occurring twice ,it can be considered two turning points(actually one meet ing at same place on graph of the eq.mentinoned in the question.So as their are 2 turning points ,  Number of real roots= turning points +1                                      =2+1=3
```
2 years ago
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• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions