If `I_n=int_0^(pi//4)tan^("n")x dx` ,   prove that `I_n+I_(n-2)=1/(n+1)dot`
Channel: Doubtnut
Date: 2020-07-12

If `I_n=int_0^(pi//4)tan^("n")x dx`
 ,
 
  prove that `I_n+I_(n-2)=1/(n+1)dot`