16.計(jì)算7的正整數(shù)次冪: 71=7 72=49 73=343 74=2401 75=16807 76=117649 77=823543 78=5764801 -- -- -- --歸納各計(jì)算結(jié)果中的個(gè)位數(shù)字規(guī)律.可得72009的個(gè)位數(shù)字為 查看更多

 

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(2009•萊蕪)計(jì)算7的正整數(shù)次冪:71=7,72=49,73=343,74=2401,75=16807,76=117649,77=823543,78=5764801…歸納各計(jì)算結(jié)果中的個(gè)位數(shù)字規(guī)律,可得72009的個(gè)位數(shù)字為
7
7

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計(jì)算7的正整數(shù)次冪:71=7,72=49,73=343,74=2401,75=16807,76=117649,77=823543,78=5764801…歸納各計(jì)算結(jié)果中的個(gè)位數(shù)字規(guī)律,可得72009的個(gè)位數(shù)字為_(kāi)_____.

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計(jì)算7的正整數(shù)次冪:71=7,72=49,73=343,74=2401,75=16807,76=117649,77=823543,78=5764801…歸納各計(jì)算結(jié)果中的個(gè)位數(shù)字規(guī)律,可得72009的個(gè)位數(shù)字為   

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計(jì)算7的正整數(shù)次冪:71=7,72=49,73=343,74=2401,75=16807,76=117649,77=823543,78=5764801…歸納各計(jì)算結(jié)果中的個(gè)位數(shù)字規(guī)律,可得72009的個(gè)位數(shù)字為_(kāi)_____.

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計(jì)算7的正整數(shù)次冪:71=7,72=49,73=343,74=2401,75=16807,76=117649,77=823543,78=5764801…歸納各計(jì)算結(jié)果中的個(gè)位數(shù)字規(guī)律,可得72009的個(gè)位數(shù)字為_(kāi)_______.

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