1i m getting -1/2(1/1*3-1/1*3*5*101)
Find the coefficient of x49 in the polynomial (x - 1/1*3) (x - 2/1*3*5).....(x - 50/1*3*.....*101)
a)1/2 - 1/1*3*....*101
b) -1/2(1 - 1/1*3*....*101)
c) 49/1*3*....*101
d) 50/1*3*...*101
ANS :- (b) as per the book.....
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6 Answers
1main bhi yahin tak aaya tha....maine kha na common term nahin nikal rahi.....let's other too try....
1yup i too think the same.....kkkkk chalo ab aur ques thode time baad...5-10 minutes break.....
1i found general term as r/1.3.5....(2r-1)(2r+1)
thus its equal to 1/2{1/1.3.5...(2r-1)-1/1.3.5.7.....(2r+1) }
tht s wat i did[1]