Question: Perform a suitable change of variable to show that the integral defining the gamma function can be written as 2P4-1-r for a >0 r(a) =

Perform a suitable change of variable to show that the integral defining the gamma function can be written as

2P4-1-r for a >0 r(a) = 2-. -1 dz 2a-1

2P4-1-r for a >0 r(a) = 2-. -1 dz 2a-1

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