445 Answered Questions for the topic Logarithms

Logarithms

02/17/14

Write the following expression as a logarithm of a single expression.
Write the following expression as a logarithm of a single expression.    Log 22 + Log  1                           11       Write a logarithm of a single expression that is equivalent to Log... more
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Logarithms Mathematics

02/13/14

How do I condense complex logarithms?
I'm stuck on a problem: log2(2x+6)-log2(x-1)=log23 I haven't learned how to do it, and I can't seem to find an example or a step-by-step. Please help!
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Logarithms Math Math Help

02/08/14

Logarithms
Given that log2x=p and log4y=q, express x2y in terms of p and of q.       Ans: 22p+2q     Thank You :)
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Logarithms Math Math Help

02/08/14

Logarithms
Solve for x and y, the simultaneous equations 4x+3 =32(2x+y ) and 9x + 3y =1o     Ans: x=0.631 and y=1.631       Thank you :)
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Logarithms Math Math Help

02/08/14

Logarithms
Express each of the following in the form in x=ax + b, and find the value of a and of b.   (i) xe-x =2.46 (ii) (xex)2 = 30e-x       Ans:(i) a=1, b= 0.9        (ii) a= -3/2, b=1.70   Thank... more
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02/04/14

Logarithms
If 2 logax= 1+loga(7x-10a), find x in terms of a.       Ans: 2a, 5a  
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Logarithms Pre Calculus Expand

02/03/14

How do you expand ln(4x)(y^1/5)
I am wondering how to expand this log function. This description needs to be 20 words long but you don't need that many to describe this problem. Ya feel?
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Logarithms

02/02/14

Logarithms
If un= (1-1/n)2 , where n is an integer greater than 1, find the value of lgu2 + lg u3+ lg u4 +...+lg u(10k), where k is a positive integer and lg=log10 .
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Logarithms Algebra 2

01/22/14

How does e^x equal a natural logarithm?
I'm learning about this in class. The teacher switches ln for e^x and the numbers all switch. I'm just confused as to why this works. 
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Logarithms

01/20/14

log2x+log4x=2
Hi, Not really sure how to solve this logarithm.    Log2x+log4x=2   Many thanks
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Logarithms

12/23/13

need help bad very confused
Select the sum of the series: Σ^5∨k-1^k^2   a. 55 b. 56 c. 200 d. 225
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12/15/13

How to solve for x
6^x=0.25^2x-1   x/2x-1=log(0.25)/log(6)    I've got so far.
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12/07/13

Use the properties of logarithms to write the expression as a single logarithm:
7 ln x - 1/4 ln y   I would be very grateful for some help! Thanks for reading!
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Logarithms

11/22/13

Log16 (x)=(1/2)
solve for x
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Logarithms

11/20/13

I am trying to find the logarithm using the change of base formula log 8th power 6ohow do I put that in my scientific calculator and get the answer.
log860  
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Logarithms

11/19/13

logarithms
how are you suppose to do with these kind of mathematical equations. Log(10)=log(30)-log( )
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Logarithms Algebra 2 Help

11/11/13

simplify log(x^2)-log(x)
I am doing equivalent logarithms and would like to know how to simplify the following log(x^2)-log(x)
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Logarithms Algebra Help

11/09/13

I need help please. How do I work this log problem? log(8)32
I need a little help remembering how to do this.   log(8) 32
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Logarithms College Algebra

11/08/13

Expand the following logarithmic expressions as much as possible. 1. ln vex 2.log(10x4v3 x2+3) /(x2+3)5
Need help on my homework in math  
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Logarithms College Algebra

11/08/13

Without using a calculator, find the exact value of: 1. log 3 81 – log p 1/ log2 v2 8 – log 0.001 2. log4[log3(log28)] 3.
Need help on my homework.
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10/22/13

Use the Laws of Logarithms to combine the expression.
Use the Laws of Logarithms to combine the expression. 4 log x − (1/3)log(x2 + 1) + 5 log(x − 1)
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Logarithms

10/22/13

Evaluate the following logarithm
Evaluate:loge 2e3 + 2loge 3 - loge 18
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Logarithms

10/21/13

Evaluate lim 1/x - log(1 +x)/x2
Evaluate lim   〈   1 - log(1 + x)〉                   x→0         x         x2
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Logarithms

09/26/13

Express “ln va “ as a product
Express “ln √a “ as a product. please explain how you arrived at your answer in as much detail as possible
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Logarithms

09/26/13

Express “ln va “ as a product
Express “ln √a “ as a product
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Expert Answers •2

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