evaluate log0.72
Not much to it. Hit the log function on your calculator then type in .72
or, type in .72 and then hit the log button
To evaluate log0.72, we need to use the logarithm rules. However, it is important to note that logarithms are only defined for positive numbers, so log0.72 is undefined in the real number system.
In general, the logarithm function log(x) is the inverse of the exponential function, where log(x) gives you the exponent to which a specific base must be raised to obtain x. The most commonly used base for logarithms is 10, which is called the common logarithm and is denoted as log10(x) or simply log(x). Another commonly used base is the natural logarithm with base e, which is denoted as ln(x).
So, if we want to evaluate log0.72, we need to rewrite it in terms of a valid base. Let's assume we want to use the base 10 logarithm:
log0.72 = log(0.72) base 10
However, since logarithms are undefined for numbers less than or equal to 0, log(0.72) cannot be evaluated.
In some cases where the base of the logarithm is not specified, you can assume it is either base 10 or base e (natural logarithm), depending on the context or what you are working with. But regardless of the base chosen, log0.72 remains undefined.
Therefore, for log0.72, there is no exact numerical value that can be determined using the usual logarithmic rules.