ν•œμ •νŒμ—λ””μ…˜μ΄ 3λ§Œμ›λΏμ΄μ•ˆν•˜λ„€ x2v2 λ‚˜μ™€μ„œκ·Όκ°€Β 


x2에 ν•˜μžκ°€μ»·μ—‡λ‚˜ γ…‹γ…‹