问题标题:
【tan(-35π/6)*sin(-46π/3)-cos37π/6*tan55π/6怎么做】
问题描述:

tan(-35π/6)*sin(-46π/3)-cos37π/6*tan55π/6怎么做

万敬回答:
  答案是应该0吧有点忘了你看看对不对还有你的公式不熟哦这道题挺简单的记熟公式就行了tan(-35π/6)=tan(-35π/6+6π)=tan(π/6)=三分之根号三sin(-46π/3)=sin(-46π/3+16π)=sin(2π/3)=sin(π/3)=二分之...
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