Solve log½(x - 3) = -4?
回答 (4)
2016-11-28 3:43 pm
log(1/2)[x-3]=-4
=>
x-3=(1/2)^(-4)
=>
x-3=1/2^(-4)
=>
x-3=2^4
=>
x=16+3
=>
x=19
=>
x-3=(1/2)^(-4)
=>
x-3=1/2^(-4)
=>
x-3=2^4
=>
x=16+3
=>
x=19
2016-11-28 3:35 pm
2016-11-28 3:34 pm
log½(x - 3) = -4
Log to base 1/2 ?
x - 3 = (1/2)^-4
= 2^4
x = 16 + 3
= 19
Log to base 1/2 ?
x - 3 = (1/2)^-4
= 2^4
x = 16 + 3
= 19
收錄日期: 2021-04-23 23:52:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20161128073122AAlOeh8