π/2-arctan1/x怎么再化简?等不等于arctanx?
证明当x>0,arctanx+arctan1/x=π/2
证明恒等式:arctanx+arctan1/x=π/2(x>0)
证明 arctanx+arctan1/x=π/2 (x>0) 用中值定理
证明arctanx+arctan1/x=兀/2 (x>0)
点样证明arctanx+arctan1/x=pi/2
求证恒等式:arctanX+arctan1/X=派/2
arctanx+arctan1/x是否等于1 ,是的话,请证明
arctan1/2+arctan1/5+arctan1/8=
arctan1/2+arctan1/5+arctan1/3
arctan1/3+arctan1/2+arctan1=几,
arcsinx+arctanx=π/2 求X
arctanx+arctan(1/x)等于多少?(x不等于0)