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Grade:
        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..
one year ago

Answers : (2)

Aditya Gupta
1717 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.
one year ago
Deepak Kumar Shringi
askIITians Faculty
4397 Points
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one year ago
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