試繪( 1 ) arg ( z - i ) = = ( 2 ) = + 3 | + | = + 1 | = 4 ( 3 ) < 1 之圖形 3.在[ 2 ] < 1 時求] = " + b 之極值 4. | 2-1 = 1 時,求證 arg ( -1 ) = 2ang ( 2 )並 ...
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