≠电路 儕能元件 例1547°+10∠-25=? 解原式=(341+j3657)+(9063-1226 =1247-0.569=1248∠-261 例2220∠35°+ (17+j9)(4+j6) 20+15 解原式=1802+j262+ 1924∠27.9×7211∠56.3 20.62∠14.04° 180.2+j1262+6.728∠70.16 =180.2+j126.2+2238+j6.329 182.5+j132.5=2255∠36 「返回[上页「下页例 1 5 47 +10  − 25 = ?   原式 = (3.41 + j3.657) + (9.063 − j4.226) =12.47 − j0.569  =12.48− 2.61 解 上 页 下 页 例 2 ? 20 j 5 (17 j9) (4 j6) 220 35 = + + +  +  解 原式 =180.2 + j126.2    20.62 14.04 19.24 27.9 7.211 56.3     +  =180.2 + j126.2 + 6.728 70.16 =180.2 + j126.2 + 2.238 + j 6.329  =182.5 + j132.5 = 225.5 36 返 回