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The coefficient of x^50 in the expansion of 1+(1+x)+(1+x)²+........+(1+x)^99 is

The coefficient of x^50 in the expansion of 1+(1+x)+(1+x)²+........+(1+x)^99 is 

Grade:11

1 Answers

Arun
25750 Points
5 years ago
Dear student
 
it is clewrly visible thet coefuof x^50 = 99c50 + 98c50 + 97c50 + …..........+ 50c50
 
nowuse upper index variable to simplify this,
 
Regards
Arun

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