- #1
MathematicalPhysicist
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i need to prove the next identities for 0<x<1:
∞
∫t^(x-1)/(1+t)dt=π/sin(πx)
0
1
∫t^(x-1)(1-t)^(-x)dt=π/sin(πx)
0
for the second one, my text gives me a hint to substitute t=u/(u+1), but i didnt succeed in getting the rhs.
i tried the defintion of B(x,1-x)=Gamma(x)Gamma(1-x)
but i don't know how to proceed from there.
thanks in advance.
∞
∫t^(x-1)/(1+t)dt=π/sin(πx)
0
1
∫t^(x-1)(1-t)^(-x)dt=π/sin(πx)
0
for the second one, my text gives me a hint to substitute t=u/(u+1), but i didnt succeed in getting the rhs.
i tried the defintion of B(x,1-x)=Gamma(x)Gamma(1-x)
but i don't know how to proceed from there.
thanks in advance.