極座標的轉換 - 考試

By Doris
at 2015-08-31T23:41
at 2015-08-31T23:41
Table of Contents
http://imgur.com/HWDWpzi
請問一下 怎麼由(1)轉換為(2)
分母的√2是怎麼來的
角度裡的t不管乘以幾倍都可以忽略 直接看常數的角度嗎?
謝謝
極座標的乘除可以直接運算
但加減就要轉換為直角座標才能運算嗎?
http://imgur.com/k4Kglt5
紅色圈起來部分不是應該為120+j120嗎? 怎麼會為0
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