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In mathematics, −1 (negative one or minus one) is the additive inverse of 1, that is, the number that when added to 1 gives the additive identity element, 0. It is the negative integer greater than negative two (−2) and less than 0 .
For example, −3 represents a negative quantity with a magnitude of three, and is pronounced "minus three" or "negative three". To help tell the difference between a subtraction operation and a negative number, occasionally the negative sign is placed slightly higher than the minus sign (as a superscript ).
The plus and minus symbols are used to show the sign of a number.. In mathematics, the sign of a real number is its property of being either positive, negative, or 0.Depending on local conventions, zero may be considered as having its own unique sign, having no sign, or having both positive and negative sign.
The imaginary unit or unit imaginary number ( i) is a solution to the quadratic equation x2 + 1 = 0. Although there is no real number with this property, i can be used to extend the real numbers to what are called complex numbers, using addition and multiplication. A simple example of the use of i in a complex number is 2 + 3i.
Subtraction is an operation that represents removal of objects from a collection. [1] For example, in the adjacent picture, there are 5 − 2 peaches—meaning 5 peaches with 2 taken away, resulting in a total of 3 peaches. Therefore, the difference of 5 and 2 is 3; that is, 5 − 2 = 3.
The infinite series whose terms are the natural numbers 1 + 2 + 3 ... All that is left is the constant term −1/12, and the negative sign of this result reflects the ...
In mathematics, the additive inverse of a number a (sometimes called the opposite of a) [1] is the number that, when added to a, yields zero. The operation taking a number to its additive inverse is known as sign change [2] or negation. [3] For a real number, it reverses its sign: the additive inverse (opposite number) of a positive number is ...
Since opening in Japan on Nov. 3, “Minus One” has accumulated a whopping $20 million. Its American and overseas theatrical assault commences Dec. 1, with solid prospects of further expanding ...