Arun sir,You have replied to my question from binomial theorem that it is right to write: If Sn = nCo+nC1+......+nCnthen can i write Sn =nCo+nC1+......+nCn = 2(summation of half terms of the Sn).I have querry about it's middle term because total number of terms of this expression is not mentioned. . I am confused that if total terms will be odd then it is not possible .Then how u say it right to write .plzzz explain

Sushant Prasad , 4 Years ago

Grade 12