设a= 12 cos6°﹣ 32 sin6°，b=2sin13°cos13°，c= 1−cos50∘2 ，则有_刷题宝

题干

设a=

1

2

cos6°﹣

3

2

sin6°，b=2sin13°cos13°，c= −cos50∘

1

2

，则有（）

A：a＞b＞c

B：a＜b＜c

C：b＜c＜a

D：a＜c＜b

上一题下一题 0.0难度选择题更新时间:2018-09-02 07:09:36

答案(点此获取答案解析）

D

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