Q.
limx→1 nxn+1-n+1xn+1ex-esinπx where n=100, is equal to
see full answer
Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!
Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya
a
5050πe
b
100πe
c
-5050πe
d
-4950πe
answer is C.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
L= limx→1 nxnx-1-xn-1ex-esinπx Put x =1+h so that as x→1, h→0. Therefore L=limh→0 h.n1+hn-1+hn-1eeh-1sinπh limh→0 n.h1+C1 nh+C2 nh2+C3 nh3+...-1+C1 nh+C2 nh2+C3 nh3+...-1πeh2eh-1hsinπhπh =-n2-C2 nπe=-2n2-nn-12πe =n2+n2πe=nn+12πe If n=100, then L=-5050πe
Watch 3-min video & get full concept clarity