11HINT
http://targetiit.com/iit_jee_forum/posts/some_series_expansions_3335.html
12 Answers
11
11WAISE MMUJHE BHI NAHI MILA[9]
but thiis ques becomes
1+ \sum_{k=1}^{infinity}{}1/4k2!k
aage soochte hain!!!!!!!!!!!!!1
21us link mei se directly kuch Nahi milega.....
u gotta think guyz.......
apply to diff values in sum formula frm ther....
HINT : THOSE 2 values shud b equal in magnitude opp osite in sign.......... then take their sum!!
1Ans should be B
we know the e expansion
ex=1+ x + x^2/2! + x2/3! + ...
e1/2=1 + 1/2 +1/22*2! + 1/23*3! + ....
e-1/2=1 -1/2 +1/22*2! - 1/22*3! + ...
adding both and dividing by 2 we get answer
11[9][9][9]
abhishek tera intuitionistic logic failho gaya
bas (D) kikami thi
[9][9][9]