※ 引述《jimmychad (吉米)》之銘言:
: 求
: (10^log2) * (7^log250) * (2^log49)
: 有點忘記怎麼算了??
: *是乘的意思 ^次方
(10^log2) * (7^log250) * (2^log49)
=2^㏒10 * 7^㏒250 * 49^㏒2
=2*7^㏒250 * 7^2㏒2
=2*7^㏒250 * 7^㏒4
=2*7^(㏒250+㏒4)
=2*7^㏒(250*4)
=2*7^3
=686
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◆ From: 1.162.53.2
※ 編輯: holgaga 來自: 1.162.53.2 (02/25 23:10)