Identify the terms and their coefficients in the expression
$3 - p q + q r - r p$ .

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Solution

The given expression is 3 - pq + qr - rp.
So, in the given expression, terms are 3, -pq, qr, and -rp.

To find a coefficient of a variable in a term, follow the steps given below:

Step 1: Encircle the variable along with its power whose coefficient we are finding.

Step 2: Leave that variable and consider all other numbers or variables written with it. That will be the coefficient.

Coefficients of $p q = - 1$
Coefficients of $q r = 1$
Coefficients of $r p = - 1$

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