์ง€์Šˆ๋ผ2๋ž‘ vxe r1 ์ค‘์—์„œ


๋‚œ r1์ด ๋” ์ž˜๋งž์•„์„œ ๊ทธ๊ฑฐ๋งŒ์“ฐ๋Š”์ค‘์ž„