์˜ˆ์ „์— x2 ๋ฏธ๋””์›€ ์žก์•„๋ดค์„๋•Œ๋Š”


ํ—ˆ๋ฆฌ๊ฐ€ ๋„ˆ๋ฌด ๋„“์–ด์„œ ์˜ ์•ˆ๋งž์•˜๋Š”๋ฐ


x2v2 ๋ฏธ๋‹ˆ๋„ ์•ˆ๋งž์„๊นŒ..?