Respuesta :

Solution

- The question asks us for which property is used in the following equation

[tex]2(RB)\cos \theta=2R(B\cos \theta)[/tex]

- The question uses the Commutative Property of Multiplication.

- This property is stated below:

[tex]A(DC)=C(AD)[/tex]

Final Answer

The answer is Commutative Property of Multiplication

RELAXING NOICE
Relax