แบบทดสอบ บทที่ 1 จำนวนเชิงซ้อน.docx

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  แบบทดสอบ บททธที่ 1 จททนวนเชวิงซซ้อน4 1. จงหาคคาตอบททงทั้ หมดของสมการ x +5x2−36 = 0 ววิธธ ททท............................................................................................................................................................ .......................................................................... ..........................................
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    1. จงหาคาตอบทงหมดของสมการ  x 4 + 5x 2 − 36  =  0   วธท 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แบบทดสอบ บทท  1     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2. จงหาคาตอบทงหมดของสมการ  x 4 − 6x 3 + 15x 2 − 22x + 12 = 0   วธท 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3. จงหาสมการพหนามดกร 3 ท มสมประสท  ! ป#นจาน$น ต#ม %&ะม 2 ' ( ' )( ป#นคาตอบ วธท ......................................................................................................................................................................................................................................  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