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If log(x) = y then log(x3) = 3*log(x) = 3*y
so that x3 = antilog(3*y)
So, to find the cibe of x
1) find log x
2) multiply it by 3
3) take the antilog of the result.
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∙ 13y ago
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How do you find the inverse log using a TI 84 plus?
The 2nd function of the log button is the inverse log. Press 2nd log, which displays 10^( on the screen. Put a number after the opening parenthesis.
How do you use the anti log on a TI-89 calculator'?
To find anti log of a number enter the number as the exponent of 10.
What is -log equivalent to?
The negative log of a number is the log of the number's reciprocal ('1' divided by the number).
How do you find the base and exponent of a number?
in a problem like n4=625 you need to do a mult-step equations In the example, 4log n = log 625 log n = (log 625)/4 n = 10^[(log 625)/4] = 5 Although this particular answer is obvious, you could also solve n5=625, or any other power of n, which isn't, using this method. hope that it is helpful to you!
How do you use logarithm tables for division?
Suppose you want to divide x by y Find log(x) and log(y) to any base b (usually 10 or e) Calculate z = log(x) - log(y) Look up the antilog of z (or find the number whose log is z). x/y = antilog(z)
How do you find log of a number using log tables?
what if I give you the wrong answer
How can you apply the cube root formula in Excel?
There are several stages to the calculation. These can be summarized in the formula=10^(LOG(x)/3)Where x = the number you want to find the cube root of. Excel example:In cell A1 enter the number you want to find the cube root of. e.g. 125In cell B1 enter the formula '=10^(LOG(A1)/3)' [omitting the 'quote' marks]The formula will return the answer 5, which is the cube root of 125. [5x5x5=125] Explanation of formula: * LOG (x) converts the original number to a logarithm. * /3 divides the Log by three * 10^ raises 10 to the power of the result of the previous calculations The equals ('=') sign is required when writing formulas into cells in Excel.Unfortunately there is no short way to find the cube root in excel, but the square root can be found by using =SQRT(number) An infinite number of 'roots' can be found by using =10^(LOG(x)/3). Just change the '3' to a number of your choice.
How do you find logarithms using a calculator?
If you are using a scientific calculator you will have a key labelled "log". To find the logarithm (to base 10) of a number, simply enter "log" followed by the number that you want to log. If you want a natural logarithm - log to the base e - use the "ln" key instead. If you haven't got a scientific calculator, use the one on your computer.
What is the cube root of 100 and what is the working out?
The cube root of 100 can be written as 1001/3 or 3√100. There are many ways to determine the answer. One way is with the use of logarithms. 1) Convert 100 into logarithms. Using logs to the base 10 then log 100 = 2 2) To find the cube root divide log 100 by 3. Then 2/3 = 0.6666(recurring) 3) Using an antilogarithm system convert 0.6666 back into a decimal number = 4.6416 3√100 = 4.6416 (4dp)
How do you find the inverse log of a number using windows calculator?
The calculator won't do it.On the calculator, the button marked 10x gives youthe inverse log of the number in the window.
How do you find the inverse log using a TI 84 plus?
The 2nd function of the log button is the inverse log. Press 2nd log, which displays 10^( on the screen. Put a number after the opening parenthesis.
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How do you Calculate the cube root of 7.2?
Here are four ways: (1). Take the log of 7. (You have to either look it up in a book, find it on a slide rule or calculator, or remember the infinite series definition of the log function and calculate the first 10 or 15 terms of the series.) Then take one third of the log. Then find the anti-log of the quotient. (2). There is a direct procedure to calculate the cube root of a number with a pencil and paper. Although I was working as a professional engineer before calculators and computers were generally available, I learned the pencil method for square roots, but not the one for cube roots. (3). Find the approximate cube root directly on a slide rule. (4). Use a hand-calculator, or a calculator simulator on a computer. These days, it's the only way that makes sense.
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Example 27=n3 : Take the cube root of 27. In general find the log, divide it by the power, then take the antilog.
How do you use the anti log on a TI-89 calculator'?
To find anti log of a number enter the number as the exponent of 10.
How do you put log functions in a TI-84?
In order to find the log with a power of ten, use the LOG button. For example, to find log105, type log(5). (The parenthesis after the g will appear when you press the LOG button. In order to find a log with a power other than ten, you will have to divide by the log10 of that power. For example, to find log82, type log(8)/log(2). In order to find the natural log of a number, use the LN key. For example, to find the natural log of 91, type ln(91).
