viewimage.php?id=2ab8df2be0c62abf&no=24b0d769e1d32ca73cec8efa11d02831ed3c848cabfee483347b0cb094a503c5644b4dc0c71db129fde1206b0d0bb38f3c405d7bc9d43b9d943d4880d2e02cc752a057b6


(2-1) AP^2+BP^2+CP^2를 나타내기

라이프니츠 정리에 의하면

viewimage.php?id=2ab8df2be0c62abf&no=24b0d769e1d32ca73cec8efa11d02831ed3c848cabfee483347b0cb094a503c5644b4dc0c71db129fde120066009b782f07f5e7fc4ecbb3a18cbbee7950ecc63f0b125

따라서 AP^2+BP^2+CP^2=6R^2

증명은 https://gall.dcinside.com/m/geometry/625


(2-2) AP^4+BP^4+CP^4를 나타내기

정리 이름은 잘 모르겠지만 하여튼


viewimage.php?id=2ab8df2be0c62abf&no=24b0d769e1d32ca73cec8efa11d02831ed3c848cabfee483347b0cb094a503c5644b4dc0c71db129fde1206b0d0bb38f3c405d7bc9d43b9dc56d43d886e17e941c1e13d8


viewimage.php?id=2ab8df2be0c62abf&no=24b0d769e1d32ca73cec8efa11d02831ed3c848cabfee483347b0cb094a503c5644b4dc0c71db129fde1206b0d0bb38f3c405d7bc9d43b9d916b168ed6e52e919f04d2c4

따라서 AP^4+BP^4+CP^4=18R^4


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