Question

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1

2

ab²的系數(shù)是______，是______次單項式．

Answer 1

根據(jù)單項式系數(shù)、次數(shù)的定義，數(shù)字因數(shù)-

1

2

是系數(shù)，字母的指數(shù)和1+2=3，故次數(shù)是3．