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三個數60.7,0.76,log0.76的大小順序是(  )                        A...

問題詳情:

三個數60.7,0.76,log0.76的大小順序是(  )                        A...

三個數60.7,0.76,log0.76的大小順序是(  )                        

A.0.76<60.7<log0.76 B.0.76<log0.76<60.7                     

C.log0.76<60.7<0.76 D.log0.76<0.76<60.7                     

                                                          

【回答】

D【考點】不等關係與不等式.                                    

【專題】函數的*質及應用.                                     

【分析】由指數函數和對數函數的圖象可以判斷60.7,0.76,log0.76和0 和1的大小,從而可以判斷60.7,0.76,log0.76的大小.                                                      

【解答】解:由指數函數和對數函數的圖象可知:                       

60.7>1,0<0.76<1,log0.76<0,                                 

∴log0.76<0.76<60.7                                          

故選:D.                                                   

【點評】本題考查利用*值法比較大小、考查指數函數、對數函數的圖象和*質,屬基礎知識、基本題型的考查.                                            

                                                          

知識點:基本初等函數I

題型:選擇題

TAG標籤:log076 #