（3)について、教えてください
（全体）－（Dを通る道順）で行けないですかね？
Users viewing this question are also looking at these questions 😉
![[2]や[3]の式にある3Ｃ1、4Ｃ2は、どういう意味ですか？ - 1](https://d1e9oo257tadp1.cloudfront.net/uploads/qa_question_image/file/1810219/thumb_l_webp_D0A829CB-FB1A-400B-92B2-C1EA65030ED5.webp?Expires=1787470336&Signature=nNNLMyC7d4bp14fkMvGdb0hTS~iOwde~qMT0Q2kp4A3TLr6AyICkelWBStbmJBKzGV4BBKyAidzdeTcC3OZXmnHZDctR0OXfgVHhjkitzLmcNnbVOZ9~~oliaR77Hq9sEfiEkXeRGc5kAAaM535bEC3hnJo65~D6Abft~Dl6svxMjxn8MAIPLqrdGdx6M54VJpmR6a463CxdqDQad8S7xI74Msok8cwRjNJpyyWghXvzDHmquNb6KcL7U-k1RUw13emhy-OnJpNQB~UkIiCvuDPsokBNX3QK3QrZ95FlxzTowaNyIPqjJV9CKCH4fc4bdiOIjAEWiN85tcyS8oSVMg__&Key-Pair-Id=K2W722D70GJS8W&Expires=1787470336&Signature=UyDrc2vQf~7uIrPDT~FygGkQfAULM9Ff1vTkK2HVHZrhQ3RJ9~mRgRF3auKhQmbHS9QknZWUzPmAhHPvLVS4lYDuHF5ODNmbJVD9304wA4hIAJuGElYma9CBOzta~~roshdNYPrNRwMZHTloyd0XrYXMXRDDr7bWwonyAsSYeQZ~VvLWAWmyLDNIFeBuJ1Cpc265SPLiS~Inkr683Nq8V-5GNsgh3qLcwcfsjh2vtD4py-GMcoNo6YUtcRynmoXIMI77NaL5eB2p9r88qtgNyO7olZFA8vYpq8sl33L6RXcMXNIzSs8GFTWJRfL2Fy8WKGSRdYMdBKpwi23rmUEJYQ__&Key-Pair-Id=K2W722D70GJS8W)
