tan(-35π/6)*sin(-46π/3)-cos37π/6*tan55π/6怎么做
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tan(-35π/6)*sin(-46π/3)-cos37π/6*tan55π/6怎么做tan(-35π/6)*sin(-46π/3)-cos37π/6*tan55π/6怎么做tan(-35π/6)*
tan(-35π/6)*sin(-46π/3)-cos37π/6*tan55π/6怎么做
tan(-35π/6)*sin(-46π/3)-cos37π/6*tan55π/6怎么做
tan(-35π/6)*sin(-46π/3)-cos37π/6*tan55π/6怎么做
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)=二分之根号三
cos（37π/6）=cos(37π/6-6π)=cos(π/6)=二分之根号三
tan(55π/6）=tan(55π/6-10π)=tan(-5π/6)=tan(π/6)=三分之根号三
剩下的会了吧 要好好学习啊 考一个好大学 我现在就常常想当初要是再努力下就好了 可是已经来不及了 你还有机会 加油啊
tan(-35π/6)*sin(-46π/3)-cos37π/6*tan55π/6怎么做
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