`|{:(a-b,b-c,c-a),(x-y,y-z,z-x),(p-q,q-r,r-p):}|=`
Channel: Doubtnut
Date: 29/03/2020

`|{:(a-b,b-c,c-a),(x-y,y-z,z-x),(p-q,q-r,r-p):}|=`