求:三角函数公式,带csc,sec,cot等等的那种RT.As many as possible.

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求:三角函数公式,带csc,sec,cot等等的那种RT.As many as possible.

求:三角函数公式,带csc,sec,cot等等的那种RT.As many as possible.
求:三角函数公式,带csc,sec,cot等等的那种
RT.As many as possible.

求:三角函数公式,带csc,sec,cot等等的那种RT.As many as possible.
csc=1/sin,sec=1/cos,cot=cos/sin
cscx=1/sinx secx=1/cosx
cscx^2=1+cotx^2 secx^2=1+tanx^2

cscx=1/sinx secx=1/cosx
cscx^2=1+cotx^2 secx^2=1+tanx^2

csc=1/sin,sec=1/cos,cot=cos/sin

http://baike.baidu.com/view/91555.htm 应有尽有。