解
簡約 (3−8i⋅x)51
解
1073741824x10+754974720x8+212336640x6+29859840x4+2099520x2+59049243−17280x2+61440x4+1073741824x10+754974720x8+212336640x6+29859840x4+2099520x2+590493240x−46080x3+32768x5i
解答ステップ
(3−8ix)51
拡張 (3−8ix)5:243−3240ix−17280x2+46080ix3+61440x4−32768ix5
=243−3240ix−17280x2+46080ix3+61440x4−32768ix51
標準的な複素数形式で 243−3240ix−17280x2+46080ix3+61440x4−32768ix5 を書き換える:(243−17280x2+61440x4)+(−3240x+46080x3−32768x5)i
=(243−17280x2+61440x4)+(−3240x+46080x3−32768x5)i1
共役で乗じる (243−17280x2+61440x4)+(3240x−46080x3+32768x5)i(243−17280x2+61440x4)+(3240x−46080x3+32768x5)i=((243−17280x2+61440x4)+(−3240x+46080x3−32768x5)i)((243−17280x2+61440x4)+(3240x−46080x3+32768x5)i)1⋅((243−17280x2+61440x4)+(3240x−46080x3+32768x5)i)
簡素化 ((243−17280x2+61440x4)+(−3240x+46080x3−32768x5)i)((243−17280x2+61440x4)+(3240x−46080x3+32768x5)i)1⋅((243−17280x2+61440x4)+(3240x−46080x3+32768x5)i):1073741824x10+754974720x8+212336640x6+29859840x4+2099520x2+59049243−17280x2+61440x4+i(3240x−46080x3+32768x5)
=1073741824x10+754974720x8+212336640x6+29859840x4+2099520x2+59049243−17280x2+61440x4+i(3240x−46080x3+32768x5)
標準的な複素数形式で書き直す:1073741824x10+754974720x8+212336640x6+29859840x4+2099520x2+59049243−17280x2+61440x4+1073741824x10+754974720x8+212336640x6+29859840x4+2099520x2+590493240x−46080x3+32768x5i
=1073741824x10+754974720x8+212336640x6+29859840x4+2099520x2+59049243−17280x2+61440x4+1073741824x10+754974720x8+212336640x6+29859840x4+2099520x2+590493240x−46080x3+32768x5i