How to Prove the Relation in the Gamma Function?

[SANGHERA.JAS]

Prove the relation given in the following word file,
I would like to request you to please help me to solve it even if it is a standard relation.

 

[Mark44]

Prove the relation given in the following word file,
I would like to request you to please help me to solve it even if it is a standard relation.

See https://www.physicsforums.com/showthread.php?t=5374
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[tt2348]

well start with the definition of a gamma function, and then post where you run into trouble?