gamja
Active Member
- Joined
- Dec 14, 2022
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- HSC
- 2023
1992 3U HSC Q6c)ii)
Show that^{n}\frac{1}{n+1}\binom{n}{n}=\frac{1}{n+1})
from
, I integrated both sides to get
^{n+1})
and then divided both sides by x to get
^{n+1}}{x})
and subbed in x=-1 to get LHS correct, but RHS became zero...
Could someone tell me where I went wrong? Thanks in advance!!
Show that
from
and then divided both sides by x to get
and subbed in x=-1 to get LHS correct, but RHS became zero...
Could someone tell me where I went wrong? Thanks in advance!!