Qual é a diferença entre 사용하다 e 이용하다 ?Podes indicar apenas respostas exemplo.

It is simillar meaning between 사용하다 and 이용하다.

There are a little difference.
이용하다 means something has advantage and beneficial when you use it.
사용하다 means just using.

For example,
I searched using cell phone.
In this case, you can use both 사용하다 and 이용하다.

But,
It's not common expression -> I went to home by bus. 사용하다 (x)
It's right expression -> I went to home by bus. 이용하다 (o)

because transportation has advantage for user.

and,
I use polite word when I talk with older person. 이용하다 (x)
I use polite word when I talk with older person. 사용하다 (o)

because polite word is just language and culture. It is not any benefic.