A nice integral.

[@sethsagnik7456]

wow, PI function in disguise! Well explained sir. Kind of recursion used in the last part.

[@nicogehren6566]

nice proof gamma function thank u sir

[@pradeepkumar-gw3td]

Shaandar sir ji 🙏

[@iitianrahul2503]

Nyc sir

[@justinrangad4636]

Beautiful

[@Fighter_Believer_Achiever]

Thank u very much sir 🙏

[@schakraborty2352]

this is gama funcion if n is integer then only gama(n+1) = n!. otherwise you have to calculate the value of gama(n)

[@amitkayem]

Solution is true only when n is I+

[@cutegirlakanshabag2449]

Thank-you sir 😊😊

[@omasati1709]

Thank you so much sir very interesting problem 😍😍😍

[@dhrubajyotirakshit413]

That's the gamma function

[@gauravahuja7803]

Thx sir ❤️ 😃

[@bluexwave5930]

I got -n!+2