工業技術 - Electricity計算機運算問題

2010-01-12 9:53 pm
IVE - Technical Stream (工業技術) - Electricity 計算機運算問題
不知為何按照以下算式去"禁機",但都計唔到答案(-0.796及-141.1)??

Example 1) v=250sin [628(10 x 10既負三次方)]
= -0.796V

Example 2) v=200sin [314(12.5 x 10既負三次方)]
= -141.1V

請高手賜教!!!
更新1:

eelyw: 麻煩您解釋一下如何將計算機轉換到radian模式,萬分感激!

回答 (1)

2010-01-12 11:11 pm
✔ 最佳答案
Note: The figure under sin is in radians, not degrees. So you must switch your calculator to radian first. sin [314 x 12.5 x 10^(-3)] = sin 3.925 = -0.705697.


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