兩個unknow點解,可否詳細解,多謝!!想明原理
134000 - V3 * 333.3 - V4 *833.3 = 0 式1
379000 - V3 * 833.3 - V4 * 2666.7 = 0 式2
點解V3 = 213.5 , V4 = 75.4架. 頭爆喇幫幫我唔該
收錄日期: 2021-04-23 20:42:23
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090602000051KK00226