Answer in Brief

Identify the term, their coefficients for the following expression:

\[\frac{a}{2} + \frac{b}{2} - ab\]

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#### Solution

**Definitions:**

A **term** in an algebraic expression can be a constant, a variable or a product of constants and variables separated by the signs of addition (+) or subtraction (\[-\] ) . Examples: 27, x, xyz, \[\frac{1}{2} x^2 yz\] etc.

The number factor of the term is called its **coefficient**.

The expression

\[\frac{a}{2} + \frac{b}{2} - ab\] consists of three terms , i.e.,* *

\[\frac{a}{2}, \frac{b}{2} \text { and } - ab\]

The coefficient of \[\frac{a}{2}\] is \[\frac{1}{2}\].

The coefficient of \[\frac{b}{2}\] is \[\frac{1}{2}\], and the coefficient of \[- ab\] is \[-\]1.

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