Suppose log14=x log15=y and log16=z?
2009-03-30 2:49 pm
Find log A in terms of x,y,and z (with no logs in the expression), for A equaling the integers 2 to 9.
回答 (1)
2009-03-30 2:59 pm
✔ 最佳答案
log2 = z/4log3= y - log5 = y- [ 1-log2]=y+(z/4)-1
log4 = z/2
log5 = 1-log2 = 1- (z/4)
log6 = log3 + log2, now you do the rest for this,
log7 = log14 - log2
log8 = 3log2, now you do the rest for this, too!
log9 = 2 log3, now you do the rest for this.
See! you must have forgotten laws of logarithm! Otherwise what is there in this?
收錄日期: 2021-04-20 11:50:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090330064924AAZGO9I