math musing

we can also discuss these problems here [1]

my query :

dump those scrary notations and write completely and then cross-multiply.

put x = -r , and u will get A_r

eg- after cross-multiplying if u put x = -3 u will get A₃= (-1)³7! 3!

this way u will get A_r = (-1)^rr!(10-r)! = (-1)^{r 10}C_r10!

the rest part is easy

thats right but how to find

[10!2¹⁰]

lol ,manually calculate tho ho jayega

i meant ,is there any generalised way ???

Hey ......... I am a new follower of Mathematics today .......... Can some1 pls tell me where I should send the Math Musing solutions to .......... Shall I e-mail or send via post ........... nd where should I send it ???????

@Aditya .............. I don't think there's any generalised way to evaluate n!2ⁿ . The only possible result I think is that the given expression cannot be an integer .............