被扁= =
標題被扁= =... (= tan(= cot(= sec(= csc(= (b)倒數關係: (sin( (csc(=_____(即csc( =_____ (cos( (sec(=_____(即sec( =_____ (tan( (cot(=_____(即tan( =_____ (c)商數關係: (tan ( sin2(+cos2=1 ( tan2(+1=sec2( (1+cot2(=csc2( sin2A +cos2A =()2+( )2= =1 ( sin2A ......
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