๋กœ์ง€ํ… ์“ฐ๊ณ  ์žˆ๋Š”๋ฐ ์ด๋ฒˆ์— r1 ํ”„๋งฅ ์‚ฌ๋ณผ๊นŒ ํ•˜๋Š”๋ฐ

์œ„ ์„ค์ • ํ˜น์‹œ ๋Œ€๋‹ˆ?