์Šค๋ ˆ๋“œ1<->์Šค๋ ˆ๋“œ2ย  = ๋ฐ๋“œ๋ฝ ๋ฐœ์ƒ

์Šค๋ ˆ๋“œ1,2<->์œ ๋‹ˆํ‹ฐ ์Šค๋ ˆ๋“œย  = ๋ฌด์Šจ์ง“์„ ํ•ด๋„ ๋ฐ๋“œ๋ฝ ์•ˆ์ƒ๊น€


์™œ ์ด๋Ÿฐ์ง€ ์•„๋Š” ์‚ฌ๋žŒ ์žˆ์–ด?