Thus, the squares of all integers are known as perfect squares.Example: 16 is a perfect square since it is a product of an integer with itself.4×4=16Also, the product (−4) with (−4) gives 16.(−4)×(−4)=16Notice that the squares of 4 and −4 are the same. ...
Define perfect square. perfect square synonyms, perfect square pronunciation, perfect square translation, English dictionary definition of perfect square. n. An integer that is the square of an integer. American Heritage® Dictionary of the English Lan
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The square of a binomial is called a perfect square trinomial. x2 + 12x + 36 is a perfect square trinomial.Example 2. Square the binomial (3x − 4).Solution. (3x − 4)2 = 9x2 − 24x + 169x2 is the square of 3x.
{cr}}(M_{i+1}) \ge {\text {cr}}(M_{i})-n+2i+3 \ge {\text {cr}}(M_{i})-n+3and{\text {cr}}(M_{n/2}) =0. Then, the bound follows from choosingM'=M_{i+1}such thatk \ge {\text {cr}}(M_{i+1}) \ge {\text {cr}}(M_i)-n+3 \ge k-n+3.\square...
Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ...) which sum to n. 给定正整数 n,找到若干个完全平方数(比如 1, 4, 9, 16, ...)使得它们的和等于 n。你需要让组成和的完全平方数的个数最少。
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Computing a square root of a given graph is NP-hard, even when the input graph is restricted to be chordal. In this paper, we show that computing a square root can be done in linear time for a well-known subclass of chordal graphs, the class of trivially perfect graphs. This result ...
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