我亲眼目睹有人发布有关微积分和三角法的恒等式难题，并迅速得到别人的解答。
I've seen people post Calculus and Trigonometry equations and get them solved fairly quickly!
介绍了用古典概率和随机变量的数字特征来解决数学分析中的一些恒等式问题。
This paper introduces the problems of some identical equation solved by the numerical characters of the classic probability and stochastic variable.
本文探讨了反演技术及其等价的形式在寻求和证明超几何级数恒等式方面的应用。
This dissertation studies the applications of the inversion techniques and its equivalent form in finding and proving the hypergeometric series identities.
本文关于更新会计恒等式和资产负债表的建议，涉及国际通用的基础会计理论。
This article about renews accountant the identical equation and the property debt table suggestion, involves international general foundation accountant the theory.
说明了用组合分析方法证明代数恒等式的有效性和实用性。
It shows the effectiveness and practicability of the approach to prove algebraic identies with combinatorial analysis.
为了便于计算对易子，我们列出一些恒等式。
To facilitate the calculation of commutators, we list identities.
含有字母的恒等式对其中字母的任何一组数值都成立。
An identity involving letters is true for any set of numerical values of the letter in it.
不必去专研记住几何上的证明和三角恒等式，虽然那确实是高中学校要求你必须去做的。
No need to dive right into memorizing geometric proofs and trigonometric identities. But that's exactly what high schools have you do.
根据研究人员的计算，过去15年间，世界上森林面积排名前50的国家中，“森林恒等式”增加的有22个。
The researchers calculated that the "forest identity" had increased over the past 15 years in 22 of the world's 50 most forested countries.
给出了两个有趣的恒等式和一个推论。
不必去钻石记住几何上的证明和三角恒等式，虽然那确实是高中学校要求你必须去做的。
No need to dive right into memorizing geometric proofs and trigonometric identities. But that's exactly what high schools have you do.
数学归纳法可以用来证明与正整数有关的恒等式、不等式、整除性问题和几何问题等。
Mathematical induction can be used to prove the positive integers and Identities, inequality, and the divisibility of geometric problems.
我们可以在简明矩阵式中重述公式（3）中的输出会计恒等式。
We can re-write the output accounting identity in expression (3) in condensed matrix form.
目的研究第一类、第二类契贝谢夫多项式的一些恒等式。
Aim To study the identities of the first and second Chebyshev multinomial.
本文运用形式幂级数的技巧，证明了一个重要的组合恒等式。
In this paper, an important combinatorial identity is obtained by means of the formal power series.
不必去记住几何上的证明和三角恒等式，虽然那确实是高中学校要求你必须去做的。
No need to dive right into memorizing geometric proofs and trigonometric identities. But that's exactly what high schools have you do.
本文应用形式矩阵的计算技巧，得到李善兰恒等式的一个等价命题，进而给出李善兰恒等式的一个初等证明。
In this article we apply formal matrices technique to get a equivalent proposition of Li Shanian identity, and hence give an elementary proof for Li Shanlan identity.
利用基本三角恒等式、物理学中几何光学知识和几何画板软件等三种思维方法，来探讨一个最短时间问题的解法。
The author explores the solution to the best time problem according to three ways of thinking, including basic trigonometric identity, geometrical optics of physics and Geometer's Sketchpad.
应用积分恒等式方法，证明了源项解的唯一存在性。
A unique solvability of the source term solution is obtained by applying integral identity methods.
在数字乘法中，恒等式是1。
利用第二类契贝谢夫多项式的性质得到了关于正余弦函数的一组有趣的恒等式。
With the use of the properties of the second Chebyshev polynomial, a group of interesting identity of sine and cosine function is obtained.
引入生产要素的势效系数，将结构生产函数模型转化为对任意一组样本成立的恒等式。
We Introduce produce elements factor of tendency result coefficient, turn structure production function model into identity that come into existence to every group of sample.
以二项式作为生成函数，给出了几个组合恒等式证明。
In this paper, some combinatorial identities are proved based on binomial generating function.
研究了第二类契贝谢夫多项式的性质，给出了奇下标第二类契贝谢夫多项式的一组恒等式及一个推论。
By studying the properties of second specie of Chbyshev polynomial, a group of identities and an inference of the second specie odd-suffixed Chebyshev polyinomials are obtained.
本文研究了子空间框架的一个基本恒等式。
In this paper, a fundamental identity for frames of subspaces is introduced.
在支出法恒等式中进口是负值，利用支出法恒等式测算其各组成部分对GDP的贡献，得到的结果是净出口仅对GDP作出很小的贡献，或者进口对GDP是负贡献。
When using expenditure approach identity to measure the contributions of its components to GDP, the result is that net export only contributes a little to GDP, or import contributes negative to GDP.
它们有相同的收敛区间，应用代入法求出它们的级数和，从而获得孪生组合恒等式。
Because they have same convergence region, sum of series and combinational twin identifies was obtained using the method of substitution.
它们有相同的收敛区间，应用代入法求出它们的级数和，从而获得孪生组合恒等式。
Because they have same convergence region, sum of series and combinational twin identifies was obtained using the method of substitution.
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