Question

pls don't spam !!
or else I will report ur answer

pls answer it quickly with explanation​

Answer 1

Hiii.....friend,

Here is ur answer,

pqr = 1. So, consider

p = -1 , q = 1 & r = -1.

Then,

$= > \frac{1}{1 + p + {q}^{ - 1} } + \frac{1}{1 + q + {r}^{ - 1} } + \frac{1}{1 + r + {p}^{ - 1} }$

$= > \frac{1}{1 - 1 + 1} + \frac{1}{1 + 1 - 1} + \frac{1}{1 - 1 - 1}$

=> 2 -1

=> 1.

Option A is 0. So, it is wrong

Option B is pq = -1 . So, it is wrong.

So, Option C is correct.

:-) Hope it helps u.☺☺☺