Extend Sum Log For Free with DocHub and make the most of your documents

Aug 6th, 2022
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How to Extend Sum Log For Free

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hi my name is Victor and today Im going to show you how to express a single logarithm as a sum or difference of logarithms okay now to express a single logarithm as a sum or difference of logarithms we have to determine whether were going to be expressing the logarithm as a sum or as a difference okay now the way that we determined that is by using two properties okay the first property tells us that if I have a log a logarithm with base a for example and inside that logarithm we have a product of two numbers now when I say product I mean two numbers or two terms that are multiplying to each other we can rewrite that logarithm that single logarithm as a sum of logarithms so when we see two two terms that are multiplying to each other then just remember that multiplication relates with addition okay so I can rewrite this single logarithm as a sum of logarithms where we would have the two terms and two separate Logs with the same base and were adding those two logs okay so this is on

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When you are asked to expand log expressions, your goal is to express a single logarithmic expression into many individual parts or components. This process is the exact opposite of condensing logarithms because you compress a bunch of log expressions into a simpler one.
To expand logarithms, write them as a sum or difference of logarithms where the power rule is applied if necessary. Often, using the rules in the order quotient rule, product rule, and then power rule will be helpful. To simplify logarithms, write them as a single logarithm.
0:25 1:23 Learn how to expand logarithmic expressions using the product rule YouTube Start of suggested clip End of suggested clip First thing ill do is ill rewrite this as log base 10 of 7. Plus log base 10 of x cubed. IsMoreFirst thing ill do is ill rewrite this as log base 10 of 7. Plus log base 10 of x cubed. Is everybody following me there so you take whats separated by multiplication.
The most common rules for summation notations are: Summation of a constant. Multiplication by a constant. 5n=1Cn=C5n=1n. Addition and subtraction. 5n=1(n+m)=5n=1n+5n=1m.
4:41 5:37 So log base 3 of 9 what do I raise 3 to to get 9 that becomes a 2 were then going to add we moveMoreSo log base 3 of 9 what do I raise 3 to to get 9 that becomes a 2 were then going to add we move the power to the front for log base 3 of M power to the front minus 1/3 log base 3 of n.
0:17 7:30 Expressing Log functions as a sum or a difference - YouTube YouTube Start of suggested clip End of suggested clip And were adding those two logs. Okay.MoreAnd were adding those two logs. Okay.
4:25 32:42 Solving Logarithmic Equations With Different Bases - YouTube YouTube Start of suggested clip End of suggested clip One third raised to the third power is one whenever you have an exponent raised to another exponentMoreOne third raised to the third power is one whenever you have an exponent raised to another exponent you need to multiply one-third times three the threes cancel and you get one.
To write the sum or difference of logarithms as a single logarithm, you will need to learn a few rules. The rules are ln AB = ln A + ln B. This is the addition rule. The multiplication rule of logarithm states that ln A/b = ln A - ln B.
The argument of a log function can only take positive arguments. In other words, the only numbers you can plug into a log function are positive numbers. Negative numbers, and the number 0, arent acceptable arguments to plug into a logarithm, but why?
Splitting summations One way to obtain bounds on a difficult summation is to express the series as the sum of two or more series by partitioning the range of the index and then to bound each of the resulting series.

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