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Grade: 11
        
(1+2x+3x^2)^10=a1+a2+.........a20. then a1 =
Then find a1, a2 , a4 ,a20
 
7 months ago

Answers : (1)

Deepak Kumar Shringi
askIITians Faculty
4384 Points
							first put x=1 and then x=-1 w and w^2 subtract then to get answer
						
6 months ago
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