2^x=600, how do I find x?

2009-11-06 7:45 am
How do I find x when it is "to the power" of another number?

回答 (5)

2009-11-06 7:55 am
✔ 最佳答案
2^x = 600
x log 2 = log 600
x × 0.3010 = 2.7782
x = 2.7782/0.3010
x = 9.23
-----
2009-11-06 4:06 pm
2^x = 600
log_2(2^x) = log_2(600)
x[log_2(2)] = log_2(8 * 75)
x = log_2(8) + log_2(75)
x = log_2(2^3) + log_2(75)
x = 3 + log_2(75)
2009-11-06 3:56 pm
xln2 = ln600

x = ln600 / ln2
2009-11-06 3:53 pm
2^x=600 take logarithms of both sides
so log (2^x)=log 600
x log 2 = log 600 so x=(log 600)/(log 2) by calculator

we get x=9.2288 approximately
2009-11-06 3:53 pm
x log 2 = log 600

x = log 600 / log 2

x = 9.23 ---------------( any log base may be used )


收錄日期: 2021-05-01 12:52:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091105234500AAg85Et

檢視 Wayback Machine 備份