tan(3π/5)和tan(-3π/5)大小
问题描述:
tan(3π/5)和tan(-3π/5)大小
答
解析:
tan(3π/5)和tan(-3π/5)大小
3π/5=108度,在第二象限,tan(3π/5)是负数
tan(-3π/5)=-tan(3π/5)是正数,
tan(3π/5)