sat答案每日一题附答案息争析数学2019年10月24日

• 第 1 页：每日一题
• 第 2 页：答案息争析

Read the following SAT test question and then click on a button to select your answer.

3/i+2/i^2

Which of the following is equivalent to the complex number shown above?

Note: i=√(-1)

A.3i+2
B.3i-2
C.-3i+2
D.-3i-2

来源:可可英语 http://www.esmo.cn/kekenet3564/sat/201910/597713.shtml