A negative number is any quantity that is less than zero. Negative numbers are the direct result of the arithmetical operation of subtraction.
If you're referring to the square root of a negative number, it's an imaginary number.
An integer is a positive or negative whole number.
It is not defined, so it is not a number of any kind.
It is because of the way in which positive and negative numbers are defined.
The reciporical of any number is one over that number, as long as it is defined (i.e., not one over zero). This also applies to negative fractions: 1 divided by a negative number is always negative.
It does not work that way. A negative power is simply the reciprocal. So that x-a = 1/xa The reciprocal is negative or positive according to whether the number itself is negative or positive. [And, if the number is 0, the reciprocal is not defined.]
You can't have the square root of a negative number, because when you multiply two numbers of the same sign, you cannot get a negative number. (sqrt) -1 is an imaginary number symbolized by i.
Yes, any number with a defined end-point, whether it be positive or negative, is a rational number.
Since a natural number is defined as a whole, non-negative number, 87 would indeed be a natural number.
An imaginary number is a continuous quantity that is the square root of a negative number and cannot be represented on the real number line.
Logs are defined only for positive numbers so the log of a negative number does not exist.
A negative number is defined as a number that is less than zero. Positive numbers, on the other hand, are more than zero. You can see that positive numbers are greater than negative numbers because they are all above zero, which negative numbers are not.