Given , are real numbers and ,then the value of is ( ) A. 4 B. 6 C. 3 D. 4 or 5 相关知识点: 试题来源: 解析 D [解析] 译文:已知,是实数,且()则 ( ) A.4 B.6 C.3 D.4或6 由已知得, 所以原式. 若, . 选D.反馈 收藏 ...
Use the following matrices, where all elements are real numbers, to show that each statement is true for 2*2 matrices.A=(bmatrix)a_(11)&a_(12)a_(21)&a_(22)(bmatrix), B=(bmatrix)b_(11)&b_(12)b_(21)&b_(22)(bmatrix), and C=(bmatrix)c_(11)&c_(12)c_(21)&c_(22...
aThe general principles that need to be considered in determining the “authorization date” of the financial statements are set out as follows:[translate] aare all real numbers, following our definitions using the kp method. 是所有实数,从事我们的定义运用k p方法。[translate]...
Are all whole numbers counting numbers? Does a negative number being squared always result in a positive number? A negative number raised to an odd power is ___ negative. Is subtraction of whole numbers commutative? How do you subtract negative fractions with whole numbers? Are...
How many whole numbers are there between 27 and 46? Why is 0 not a prime or composite number? Why is 1 not a prime or composite number? Are all whole numbers counting numbers? Why is zero a rational number? What are all the whole numbers?
Since x, y, z are all reals located in [0,n], the number of choices for each one is infinite. Without loss of generality, assume that n≥ x≥ y≥ z≥ 0. Then the set of points (x,y,z) is a tetrahedron, or a triangular pyramid. The point (x,y,z) distributes uniformly in...
Given are real numbers, and , then the value of is A. 4 B. 6 C. 3 D. 4or6 相关知识点: 试题来源: 解析 如图1,在ABCD中,AC与BD相交于O,AE⊥BD于E,CF⊥BD于F,那么图中的全等三角形共有( ) (A)5对 (B)6对 (C)7对 (D)8对...
Hey , when we were asked "are real numbers countable", why didn't we just say "well, some of them are, but not all of them are", and leave it at that? -- perhaps that would have been underinformative . . . SSequence said: I don't quite understand, what do you mean by...
To which set of numbers does 0 not belong? a. Whole numbers b. Real numbers c. Natural numbers Are all whole numbers rational numbers? Do the rational numbers have the same cardinality as an integer? Are all whole numbers counting numbers?
Are all whole numbers counting numbers? What are some integers that are not whole numbers? Are all whole numbers positive? Is 0 a multiple of every whole number? If x and y are integers, then x+y is ___ equal to 0. a. never b. sometimes c. always Are...