(f(x)) is a linear function and is a constant. Under which of the following conditions is the slope of (f(x)) greater than the slope of (f(rx))? ()Ⅰ. (f(x)) is ascending and < 1Ⅱ. (f(x)) is descending and 0≤ < 1Ⅲ. (f(x)) is descending and > 1A. Ⅰ only...
Consider the function: f(x, y)=\left\{\begin{matrix} \frac{k(x^2+y^2)}{\sqrt{x^2+y^2+1}-1}, if (x,y)\neq (0,0)\\ 1, if (x,y)=(0,0)\\ \end{matrix}\right. where k is a constant. Does the function have ...
FunctionIncreasing/DecreasingExample Constant Function f(x)=cf(x)=c Neither increasing nor decreasing Identity Function f(x)=xf(x)=x Increasing Quadratic Function f(x)=x2f(x)=x2 Increasing on (0,∞)(0,∞) Decreasing on (−∞,0)(−∞,0) Minimum...
If f is a constant function, f(x,y)=k and R=[a,b]* [c,d], show that \iint\limits_{R}k\d A=k(b-a)(d-c) 相关知识点: 试题来源: 解析 If we divide R into mn subrectangles, \iint _{R}k\d A\approx\sum\limits _{i=1}^{m}\sum\limits _{j=1}^{n}f(x^{*}...
She exhibits the idealism common to many advocates of sustainability, be it in food or in energy. Vanity is a constant; people will only start shopping more sustainably when they can’t afford not to. (2013年text2) 【题目考点】后置定语;状语从句; ...
【题目】Given that a is a constant, prove by mathematical induction that, for every positive integer n,(d^n)/(dx^n)(xe^(ax))=na^(n-1)e^(ax)+a^nxe^(ax) 相关知识点: 试题来源: 解析 【解析】 n =1infomulagivesa^0e^(ax)+axe^(ax)=e^(ax)+axe^(ax) d/(dx)(xe^(ax))=...
In the preceding example, the is operator matches an expression against a property pattern with nested constant and relational patterns.The is operator can be useful in the following scenarios:To check the run-time type of an expression, as the following example shows: C# Copy int i = 34;...
Definition of a periodic function : For a function to be periodic, having a non-zero constant p, it should satisfy its definition : f(x+p) = f(x) This is the periodic function formula If this property is satisfied by any positive constant p, it is referred to as the fundamental per...
连上下句:根据画线句上文“As with all things, the secret to managing your finances like an adult is a constant strive for balance (与所有事情一样,像成年人一样管理财务的秘诀是不断努力保持平衡)”可知,沃特斯说与所有事情一样,像成年人一样管理财务的秘诀是不断努力保持平衡。即不让财务影响自己的...
The basic function of a variable speed drive (VSD) is to control the flow of energy from the mains to the process.