log question

2008-03-30 9:15 pm
EX
log5 125 = x
5 x = 125 = 5 3
x =3

question ?

log2 1^32 =x
????????????

回答 (2)

2008-03-30 9:27 pm
✔ 最佳答案
log2 1^32 =x

log 2 1=x--------(1^32=1)
x=log2(2^0)=0
2008-03-30 10:15 pm
log2 1^32=x
x^2=1
x=1
由於好似太簡單
所以我唔知你有冇將32分之1打左1^32如有就係
log2 1/32=x
x^2=1/32
x=1/√32
x=√32/32
x=4√2/32
x=√2/8

2008-03-30 14:17:58 補充:
sorry睇錯題目
應該係
log2 1^32=x
2^x=1^32
2^x=1
x=0(因為任何數的0次方係1)
參考: own


收錄日期: 2021-04-25 17:27:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080330000051KK01250

檢視 Wayback Machine 備份