Question

when pqr: 1 any one give me this answer by written ​

Answer 1

Step-by-step explanation:

pqr=1

q=1/pr

1/1+p+1/q + 1/1+q+1/r + 1/1+r+1/p

(replace q)

1/1+p+1/pr. +. 1/1+pr+1/r. + 1/1+r+1/p

=pr/pr+1+r + r/ pr+1+r. +. 1/pr+r+1

=pr+r+1/pr+1+r

=1

hope it helps