menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
True or false log(x+y)-logy=logx
Ask a Question
Questions
Unanswered
Tags
Ask a Question
True or false log(x+y)-logy=logx
asked
Nov 22, 2018
93.5k
views
2
votes
True or false log(x+y)-logy=logx
Mathematics
high-school
KlingonJoe
asked
by
KlingonJoe
8.3k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
2
Answers
4
votes
False. That is not how properties of logs works. log(xy)=logx+logy, not log(x+y)=logx+logy.
MSL
answered
Nov 22, 2018
by
MSL
7.4k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
6
votes
log(x + y) - logx = logx
By laws of logarithm, logA - logB = log(A/B)
log(x + y) - logx = log((x +y)/x)
log((x +y)/x) is not equal to log x.
So the statement:
log(x + y) - logx = logx is
False.
Hope this helps.
Daniel Wu
answered
Nov 26, 2018
by
Daniel Wu
8.7k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Jun 6, 2024
176k
views
Expand the logarithm fully using the properties of logs. Express the final answer in terms of logx, and logy. log(x)/(y³)
A Honey Bustard
asked
Jun 6, 2024
by
A Honey Bustard
8.3k
points
Mathematics
high-school
1
answer
1
vote
176k
views
asked
Jan 17, 2024
52.2k
views
If logx 27 +logy 4 =5 and log x 27 -logy 4=1 find x and y
HigherAbstraction
asked
Jan 17, 2024
by
HigherAbstraction
9.2k
points
Mathematics
high-school
1
answer
0
votes
52.2k
views
asked
Mar 9, 2022
101k
views
Log (sqrt(xy))/z is equal to a) 1/2 logx + 1/2 logy - logz b) 1/2 logx + logy - logz c) 1/2 (logx + logy - logz) d) 1/2 log xy/ logz
Jeffz
asked
Mar 9, 2022
by
Jeffz
8.4k
points
Mathematics
high-school
1
answer
5
votes
101k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org