Teaching DSSSB TGT Mock Test 2025 Engineering Mathematics Combinatorics Summation

यदि (1+ x + x2)n = \(\rm\displaystyle\sum_{r = 0}^{2 n}\) ar xr है, तब a1 − 2a2 + 3a3 − …. −2n a2n है:

1
(n + 1)2n
2
n
3
−n
4
n(2n)
Share: WhatsApp Telegram X

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Other Tools: chatwiz.hivanix.in mmspace.hivanix.in unogame.hivanix.in

Quick Navigation

Home

Subjects

Chapters