帮忙求下这2个角度是多少?∠arctan(-2/-2√3)和∠arctan(-2/2√3)
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帮忙求下这2个角度是多少?∠arctan(-2/-2√3)和∠arctan(-2/2√3)
![帮忙求下这2个角度是多少?∠arctan(-2/-2√3)和∠arctan(-2/2√3)](/uploads/image/z/15704006-14-6.jpg?t=%E5%B8%AE%E5%BF%99%E6%B1%82%E4%B8%8B%E8%BF%992%E4%B8%AA%E8%A7%92%E5%BA%A6%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E2%88%A0arctan%28-2%2F-2%E2%88%9A3%29%E5%92%8C%E2%88%A0arctan%28-2%2F2%E2%88%9A3%29)
arctan(-2/-2√3)
=arctan(√3/3)
=π/6
=30°
∠arctan(-2/2√3)
=-arctan(√3/3)
=-π/6
=-30°
要记住arctan的取值范围是(-π/2,π/2)
=arctan(√3/3)
=π/6
=30°
∠arctan(-2/2√3)
=-arctan(√3/3)
=-π/6
=-30°
要记住arctan的取值范围是(-π/2,π/2)
大家帮忙求下这2个角度是多少?∠arctan(-2/-2√3)和∠arctan(-2/2√3)
arctan(-2)+arctan(-3)=?
arctan(1/3)+arctan(1/2)的值为?
arctanπ/2=?
arctan根号2是什么,
求arctan1/3+arctan(-2)的值
arctan1/3+arctan(-2)的值为
求值:sin[1/2arctan(-4/3)]
求arctan1/3+arctan(-2)的值.
arctan(A/2)+arctan(A/5)=30
计算:arctan1/2-arctan(-2)
求证:arctan 1/2+arctan 1/5+arctan 1/8=π/4