Determine whether the following argument is valid or invalid by using a truth tree. One must display all work. Be sure to indicate with text whether the truth tree is open or closed, and whether the argument is valid or invalid. One may use typewriter symbols. $($This argument has three premises and one conclusion.$)($One may type one's answer in the provided text box or use the insert image, document, etc. to upload an image, document, etc.$)$

$R>(Q$&$S)$

S

~Q

$\_\_\_\_\_\_$

~R