A function f is such that f(x)=ln(5x-10) solve f(x)=0

A function f is such that f(x)=ln(5x-10) solve f(x)=0 if f(x) is a linear function such that f(2)=5 and f(4)=13,f(x)=? 英语翻译Symbolically,the range of a function is the set of all elements y in B such that exists x with f（x）=y Let f be a function such that f(x)=f(1-x) for all real numbers x.If f is differentiable everywhere,then f'(0)=?为什么是-f'(1)而不是f'(1)? Limit of a function of a real variableDefinition.A function f (x) is said to approach a limit l as x approaches the value a if,given any small quantity ε ,it is possible to find a positive number δ such that f (x) l < ε for all x satisfying x a < 关于 是否存在这样的函数（ 个人觉得是 常微分方程问题）Is there such a function?suppose g is a function satisfying the following two preperties:(a).g(x)=xg(1/x),for all real numbers x( x is not zero),and(b).g(x)+g(y)=1+g(x+y) f 求一个数学和英文都不错的能人,求解以下这几题.看不懂的就打酱油吧.Determine whether or not F is a conservative vector field.If it is,find a function f such that F = f.If it is not,enter NONE.F（x,y)=(exp(x) sin(y) i+ (exp( 一道大一的微积分题目 Consider the function f(x) = xx; x > 0.(a) Find f0(x) and f00(x).(b) Solve f0(a) = 0.Is there any b > 0 such that f00(b) = (c) It is clear that f0(x) < 0 for x < a and f0(x) > 0 for x > a.Therefore f is decreasing on(0; she is such a SAT数学题 Function f is defined by f(x)=(x-a)(x-b)/(x-c),where 0 英语翻译The fd_set structure is used by various Windows Sockets functions and service providers,such as the select function,to place sockets into a set for various purposes,such as testing a given socket for readability using the readfds parame 求一道英文数学题!consider the linear function f(x)=ax+b.compute all ordered pairs (a,b) such that for all real numbers x,f(f(x))+f(x)=6x+60. 1.Does formula f(x)=1/(x²-2) define a function f:R->R?A function Z->R?2.If there are 2187 function f:A->B and |B|=3.What is |A|?3.Give an example of a function f:A->B and A1,A2 in the A for which f(A1∩A2) ≠ f(A1)∩f(A2)4.If A={1,2,3,4,5} an 一道英文数学题,Let f be a real-valued function of real and positive argument such that f(x)+3xf(1/x)=2(x+1) for all real numbers x>0.Find f(2003). A portion of the graph of the function f is shown in the xy-plane above. What is the y-intercept ofthe graph of the function g defined by g(x)=f(x)+1? Given the function f(x) = 150,what is the value of f(10)?a.10b.150c.160d.1500为什么 ..thanks a lot . Determine if the function f:R→R defined by f(x) = (X^2+1)/(X^2+2) is a bijection.Explain 一道高数题 Find A and B given that the function f(x) is differentiable at x=1f(x)= x^3 (x1)