Mathematically, it means that the product of a number x multiplied by it is 1, which is recorded as 1/x, and the process is "multiplication inverse". All numbers except 0 have reciprocal, and the numerator and denominator, in turn, are the reciprocal of 1, and 0 has no reciprocal.
Yes, this is a polyphonic word with two pronunciations, namely do and do.
When pronounced as d m: o, it sounds like sound. From person to voice. Originally meant to be depraved.
When pronounced as ao, the meaning is reversed; Invert or tilt the container to make the contents come out; Move in the opposite direction.
Extended data:
Reciprocal of real numbers:
1, find the reciprocal of a fraction, for example? We just need to put? The numerator and denominator of this fraction are interchanged, that is? What is the reciprocal of? .
2. To find the reciprocal of an integer, you only need to regard this integer as a fraction with a denominator of 1, and then find the reciprocal of this fraction. For example, 12, that is? And then what? The numerator and denominator of this fraction are interchanged. If the numerator is the denominator and the denominator is the numerator, then what? , that is, the reciprocal of 12 is;
3. Description: its reciprocal is 1 and-1, the reciprocal of a positive number is positive, the reciprocal of a negative number is negative, and 0 has no reciprocal;
4. divide 0.25 into components, that is? And then what? The numerator and denominator of this fraction are interchanged. The original numerator is the denominator and the original denominator is the numerator. And then what? It becomes an integer, which is 4, so 0.25 is the reciprocal of 4. It can also be said that 4 is the reciprocal of 0.25. Can also be divided by 1, such as 0.25, 1/0.25 equals 4, then the reciprocal of 0.25 is 4;
5. Find the reciprocal reduction problem. In the process of looking for reciprocity, what are the reducible offer points, such as? , about minutes later? Finally, exchange numerator and denominator, and get? , that is? The reciprocal of; So two numbers whose product is 1 are reciprocal.
Baidu encyclopedia-countdown
Baidu encyclopedia-pour