Mirror Camera Lenses To Take A Picture Of An Image In A Plane Mirror: If The Camera Is 0.7 M In Front Of The Mirror...?

To take a picture of an image in a plane mirror: If the camera is 0.7 m in front of the mirror...? - mirror camera lenses

To take a picture of my reflection in a mirror plane. If the camera 0.7 m in front of the mirror, how far must focus the camera lens?