Threads Tagged with inequalities Thread / Thread Starter Last Post Replies Views These are the two last problems I'll bother you with for a short while (I love this forum, I'll definitely stay on and... Oct30-13 09:41 PM Mark44 4 250 Calculus & Beyond Homework Note: I think I solved this while writing this topic, did not want to scrap it! if you think its wrong let me know! ... Oct24-13 09:44 PM radiator 5 426 Calculus 1. The problem statement, all variables and given/known data Identify the solution set of the inequality. 2.... Oct2-13 12:09 AM ehild 9 518 Precalculus Mathematics Homework 1. The problem statement, all variables and given/known data http://i42.tinypic.com/153wehw.png 3. The... Sep29-13 03:47 PM HallsofIvy 3 288 Precalculus Mathematics Homework Hello, I was looking at Riley's solution manual for this specific problem. Along the way, he ended up with a quadratic... Sep13-13 10:11 AM pasmith 3 344 General Math Prove that $$\frac{y^x-1}{xy^{x-1}(y-1)}<1$$ where x,y \in ℝ, x>1 and y>1. I was able to prove it using... Aug11-13 10:14 PM Simon Bridge 3 416 General Math the random value X has the inequality , -10<=X<=10 and E(X)=2, what is the minimum upper bound of the probability... Jun8-13 09:10 PM haruspex 14 412 Precalculus Mathematics Homework Hi all, I've been trying to figure out why this statement is true: \frac{r}{r+b} > \frac{r-1}{r+b-1} \quad... Jun8-13 06:34 PM GreenLeaf 15 481 Set Theory, Logic, Probability, Statistics Hello, could somebody please explain to me how 1-exp(-μt) ≤ μt and similarly (1-exp(-μt))exp(-λt) ≥... Apr28-13 11:40 AM stukbv 2 259 Set Theory, Logic, Probability, Statistics 1. The problem statement, all variables and given/known data x y and z are real numbers solve in lR (1+4x^2)y=4z^2... Apr21-13 07:00 AM mfb 1 253 Precalculus Mathematics Homework Hi, I was hoping that someone might be able to please help me with this proof. Prove that var(x+y) ≤ 2(var(x) +... Apr8-13 10:55 PM stlukits 3 390 Set Theory, Logic, Probability, Statistics 1. The problem statement, all variables and given/known data Solve each inequality without graphing the corresponding... Mar25-13 02:25 PM SammyS 3 339 Precalculus Mathematics Homework http://i.imgur.com/DIhhNSN.png I need help with the second part, I've managed to get through all of the part (i),... Mar18-13 04:51 PM dirk_mec1 2 214 Calculus & Beyond Homework Please vote and if possible state the reasons for holding your belief. As a review here are the two major views with... Mar13-13 05:46 PM bohm2 278 15,664 Quantum Physics 1. The problem statement, all variables and given/known data Hi PF! I am studying from a book - A first course in... Mar11-13 05:00 AM icystrike 6 648 Precalculus Mathematics Homework So could you please help me demonstrate some inequalities? Please! They want to prove them without calculating the... Mar4-13 06:19 PM HallsofIvy 3 304 Calculus & Beyond Homework Hello guys, I am trying hard to understand the reason of the violation, and i hope you give me some help. Here... Feb26-13 10:17 AM bohm2 97 8,148 Quantum Physics 1. The problem statement, all variables and given/known data Solve the following inequalities. Do each one... Feb20-13 06:19 AM Elihu5991 2 305 Precalculus Mathematics Homework When I was working on a rather difficult real-life math problem, I nearly found the solution. What I came up with was... Feb18-13 04:22 PM Chelonian 0 384 General Math Hi, I used to do all this type of inequalities but I have not practice this for almost a year and I have totally... Jan28-13 12:30 PM Serinety 3 565 General Math 1. The problem statement, all variables and given/known data (x-2)/(x+3) less than (x+1)/(x) 3. The attempt at a... Jan17-13 10:07 AM Joffan 19 1,220 Precalculus Mathematics Homework 1. The problem statement, all variables and given/known data Hi, i have a question regarding inequalities: I have... Jan16-13 06:05 PM Joffan 9 455 Precalculus Mathematics Homework Hello, I'm having some trouble with a Queuing Networks question, not the networks but solving a system of inqualities... Nov17-12 06:49 PM Ray Vickson 4 396 Calculus & Beyond Homework 1. The problem statement, all variables and given/known data (5 + √24)x + (5 - √24)x > 98 2. Relevant equations... Nov9-12 05:35 AM tiny-tim 4 572 Precalculus Mathematics Homework Can anyone help me confirm if I've solved this correctly? Many thanks. 1. The problem statement, all variables... Oct27-12 10:58 PM odolwa99 8 488 Precalculus Mathematics Homework find the set of values of x for which 2x > \dfrac{3x + 1}{x+1} done this and got -1 1 b) find the... Oct25-12 04:22 PM synkk 6 559 Precalculus Mathematics Homework I am looking at questions like 1/(x+4)>x-4 or 1/(x+7)>x-7 I have no idea how to solve them, I have simplified to... Oct24-12 06:52 AM alewisGB 6 408 Precalculus Mathematics Homework My final answer matches that of the text book, but do I need to change the < to > at any point as I solve this? I ask... Oct23-12 12:13 PM odolwa99 2 402 Precalculus Mathematics Homework 1. The problem statement, all variables and given/known data The final answer I have of (a+b)(a-b) does not appear... Oct22-12 12:48 PM odolwa99 4 486 Precalculus Mathematics Homework 1. The problem statement, all variables and given/known data Hi, there are several methods to solve an quadratic... Oct9-12 04:21 PM davon806 2 570 Precalculus Mathematics Homework Hi, I am trying to solve x^2 - 10x + 26 < 0 Here are my steps: 1.Find the roots of x by using quadratic formula: ... Oct1-12 04:32 PM HallsofIvy 10 642 Precalculus Mathematics Homework I was hoping someone could give a little more insight, or perhaps enlighten me to a better way of approaching solving... Sep28-12 08:14 AM Diffy 6 1,087 General Math 1. The problem statement, all variables and given/known data The product of two numbers is less than 340. One of the ... Sep16-12 12:22 PM CAF123 1 535 Precalculus Mathematics Homework 1. The problem statement, all variables and given/known data http://i.imgur.com/cHFof.jpg Question 42 in particular.... Sep14-12 08:00 AM HallsofIvy 1 419 Precalculus Mathematics Homework I have been stuck on two question for sometime, and would appreciate some guidance to where I am going wrong. Here... Sep4-12 04:15 PM Taylor_1989 11 1,094 General Math Hello, I am stuck on something so simple. The problem is i have a great difficulty with the geometric interpretation... Aug28-12 11:13 PM chiro 1 934 Linear & Abstract Algebra 1. The problem statement, all variables and given/known data Suppose U and V are unitary matrix, A and B are... Aug16-12 01:52 PM Zondrina 3 392 Calculus & Beyond Homework So I was brainstorming:bugeye: trying to find what I did wrong in this chemistry problem: ... Aug12-12 05:46 PM drtg45 3 764 General Math 1. The problem statement, all variables and given/known data Prove: If a2+b2=1, and c2+d2=1, then ac+bd ≤1 2.... Aug3-12 03:12 PM HallsofIvy 4 599 Precalculus Mathematics Homework Can we explain the meaning of the modulus(absolute value) with these equations? |x| > a =>x > a or x < -a(if a \in... Jun29-12 06:27 AM haruspex 1 418 General Math