Logs!!!! Watch

CrystalPark
Badges: 0
Rep:
?
#1
Report Thread starter 2 years ago
#1
Hey guys
In C2 for logarithms how do you manipulate a question with three minus logs??
Coz I know that when there's a minus you divide the logs but how do you do that if there are three minuses??
Ex: log(2)11x+3 - log(2)5x - 2log(2)x = 1

Please help 😭😭😭
0
reply
jonnypdot
Badges: 15
Rep:
?
#2
Report 2 years ago
#2
(Original post by CrystalPark)
Hey guys
In C2 for logarithms how do you manipulate a question with three minus logs??
Coz I know that when there's a minus you divide the logs but how do you do that if there are three minuses??
Ex: log(2)11x+3 - log(2)5x - 2log(2)x = 1

Please help 😭😭😭
log(x)-log(y)=log(x/y)
log(x/y) - logz = log(x/yz)

Take it step by step remember you cannot do the following 2log(x) - log(y) = 2log(x/y) noooo
2log(x) -log(y) = Log(x^2/y)
0
reply
B_9710
Badges: 15
Rep:
?
#3
Report 2 years ago
#3
 -\log_ab=\log_a\left ( \frac{1}{b} \right ) .
0
reply
CrystalPark
Badges: 0
Rep:
?
#4
Report Thread starter 2 years ago
#4
(Original post by jonnypdot)
log(x)-log(y)=log(x/y)
log(x/y) - logz = log(x/yz)

Take it step by step remember you cannot do the following 2log(x) - log(y) = 2log(x/y) noooo
2log(x) -log(y) = Log(x^2/y)
Thank you so much!!!! 👌🏻💯
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Arts University Bournemouth
    Art and Design Foundation Diploma Further education
    Sat, 25 May '19
  • SOAS University of London
    Postgraduate Open Day Postgraduate
    Wed, 29 May '19
  • University of Exeter
    Undergraduate Open Day - Penryn Campus Undergraduate
    Thu, 30 May '19

How did your AQA GCSE Physics Paper 1 go?

Loved the paper - Feeling positive (194)
30.36%
The paper was reasonable (256)
40.06%
Not feeling great about that exam... (110)
17.21%
It was TERRIBLE (79)
12.36%

Watched Threads

View All