- #1
iceman
Hello everyone, this one might seem easy to you but it's driving me insane.
Q) Suppose f(x)=int(1/t.dt)
where the upper limit=x, lower limit=1 ; for x>0.
Without evaluating the integral show that
for any x,y>0, f(x)+f(y)=f(xy).
where you may consider a substitution s=xt in the left-hand side.
Thanks for your help in advance.
Q) Suppose f(x)=int(1/t.dt)
where the upper limit=x, lower limit=1 ; for x>0.
Without evaluating the integral show that
for any x,y>0, f(x)+f(y)=f(xy).
where you may consider a substitution s=xt in the left-hand side.
Thanks for your help in advance.
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