trung tỉ
Definition
- Noun (Mathematics):
- Means (of a proportion): In a proportion (e.g., a : b = c : d), the "trung tỉ" are the inner terms, specifically 'b' and 'c'. They are also called the means.
Usage Examples
- Noun:
- Trong tỉ lệ 2 : 4 = 4 : 8, các số 4 và 4 là trung tỉ. (In the proportion 2 : 4 = 4 : 8, the numbers 4 and 4 are the means.)
- Tích của trung tỉ bằng tích của ngoại tỉ. (The product of the means equals the product of the extremes.)
Advanced Usage
- Mathematical Property: In the proportion a/b = c/d, the "trung tỉ" (b and c) have the property that a * d = b * c (the product of the means equals the product of the extremes).
Variants and Related Words
- Ngoại tỉ (n): Extremes (of a proportion). In a : b = c : d, 'a' and 'd' are the .
- Tỉ lệ thức (n): Proportion (mathematical statement of equality between two ratios).
Synonyms
- Means: The middle terms of a proportion.