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The solution of ax = b is x = log a b For example, the solution of ex = 2 is x = log e 2. To find the value of this logarithm, we need to use a calculator: log e 2 = 0.6931. Note Logarithms were invented and used for solving exponential equations by the Scottish baron John Napier (1550 – 1617). In those days, before electronic calculators ...
25 Φεβ 2013 · This supportive Practice Book is intended to be used alongside the Cambridge Checkpoint Mathematics Coursebook 8. It contains exercises that will help students develop the skills they need...
In this booklet we will demonstrate how logarithmic functions can be used to linearise certain functions, discuss the calculus of the exponential and logarithmic functions and give some useful applications of them.
to use a calculator to work out the logarithms of most numbers, but it is very important that we understand what it is that the calculator is working out for us when we push the buttons. Without a calculator we can work out the logarithms of many numbers. Examples: log 10 100 = log 10 10 2 =2 log 10 0.1=log 10 10 −1 = −1 log 10 10 √ 10 ...
On a calculator it is the "log" button. It is how many times we need to use 10 in a multiplication, to get our desired number. Example: log(1000) = log 10 (1000) = 3
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