최준영
2024.01.22 14:06
PL/4 - Pa/2 = Pa => PL/4 = 3/2 * Pa => P 약분 => L/4 = 3/2 *a => L/a = 3/2 * 4 = 6
PL/4 - Pa/2 = Pa => PL/4 = 3/2 * Pa => P 약분 => L/4 = 3/2 *a => L/a = 3/2 * 4 = 6
등록