Answer
inverse property of multiplication
Work Step by Step
RECALL:
The inverse property of multiplication states that for any nonzero real number $a$,
$a \cdot \dfrac{1}{a} = 1$
Note that when $a= \dfrac{2+m}{2-m}$, then $\dfrac{1}{a} = \dfrac{2-m}{2+m}$
Thus, the given statement illustrates inverse property of multiplication.
