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高三數(shù)學(xué)復(fù)數(shù)的乘法與除法(已修改)

2024-11-27 02:53 本頁面
 

【正文】 ),( Rdcbadiczbiaz ????? 21 ,如果兩個(gè)復(fù)數(shù)復(fù)數(shù)的乘法運(yùn)算: iadbcbdaczz )()( ????? 21則定義:iadbcbdacbdib c iadiacdicbiazz)()())((???????????? 221事實(shí)上,的乘法相似)復(fù)數(shù)的乘法與多項(xiàng)式(一個(gè)復(fù)數(shù))兩個(gè)復(fù)數(shù)的乘積還是注:(2 1性質(zhì): 12211 zzzz ???. )().( 3213212 zzzzzz ?????31213213 zzzzzzz ?????? )(.23224321))(())()(())()()((biabiabiaiii???????例:計(jì)算:))(()( iii ?????? 2312281 原式1020202221011 ????????? iiii ))((i3112 ???22222 bababiabia ??????原式)(zzzzzzz1122 ???? 時(shí),特別性質(zhì): ||,|||||||||| 2121 zzzz ???22222 223 babiaibabiabiabia ????????? ))(()( 原式2121 zzzz ???復(fù)數(shù)的乘方 nmnm zzz ???mnnm zz ?)(mmm zzzz 2121 ??? )(421 )( i?例:計(jì)算:2221 ])[( i??原式iiiii2471624943441222????????????)()(nn zz |||| ?性質(zhì):2121| zz ?|注:虛數(shù) i的乘方 114321??????iiiiii114342414?????????nnnniiiiiinn ii )( ?? 例:計(jì)算:211)N4 k ( k * ?????? 原式n0i)N1 ( k4k * ??????? in 原式211)N2 ( k4k * ???????? 原式n0)N3 ( k4k * ??????? iin 原式 102ii1 i???? ?例:計(jì)算:iii ??????????? 231331 )()(原式 )ii(i 483k2kk ?? ??例:計(jì)算:481kk )ii ?? ki(原式1( i) 148 ?? ?k][niiii nnn求最小正整數(shù)例:已知 ,)()( 2111122??????nnnii 2i1i)[(111 22 ?????? ]])[(原式nnnii 2i1(2i )12 ?????)( 1i1(i )1 ?????nnii1211????????? nnnn iiii )()(4122 ???? 最小值是偶數(shù),則若 ninn31221????最小值是奇數(shù),則若 ninnNM0122 ?求例:已知集合},|||{},|{??????? ?zzzNZnizzM n}, 11{M ii ???可知 1?? || zizz ?????? 1N 2中,在}, iiM ??? {N?biayixdic ???? ))((若復(fù)數(shù)的除法運(yùn)算: biaixdcydycx ????? )()(:則?????????????
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