Larry Feldman Tutoring Services

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Chicago, IL
Larry Feldman Tutoring Services

Ask me your math questions on this page. I'll help you for free, time permitting. Please check out I strive to help students figure out how.

My name is Larry Feldman, and I specialize in making complex material understandable to a mass audience. I have a MSEE and over twenty years of applied mathematics and teaching experience. I firmly believe that every person has the ability to comprehend mathematics as long as the material is presented in the right way. Most complicated problems can be broken down into simpler components. I create

applications for iOS (iPhone, iPad and iPod Touch) and Android because those platforms are powerful, user-friendly, and mobile. If you're looking for applications that simply list formulas, there are plenty to choose from on the iTunes App store and Android Market written by other authors. My applications provide formulas too, but they also solve complex problems and explain the concepts behind the formulas. Students will learn a great deal from my applications, and they will gain the ability to check their homework answers quickly. Students, teachers and other professionals will appreciate the ability to obtain answers to their questions in the blink of an eye.

12/06/2024

https://youtu.be/gQwMEnt_p3Y?si=SHoZvNPVaVN_YgWb

This video has no sound. You're not missing much as my handwriting is as mediocre as my voice. I recommend listening to your favorite music while watching,...

12/04/2024

https://youtu.be/YGYrBBntIIQ?si=g8pDlglhzaSAiZd8

This video has no sound. You're not missing much as my handwriting is as mediocre as my voice. I recommend listening to your favorite music while watching,...

12/26/2020

https://www.quora.com/What-s-the-line-2x-5y-20-cuts-the-x-axis-at-A-and-the-y-axis-at-B-mean/answer/Larry-Feldman-7?ch=10&share=9a970388&srid=VPf8

Larry Feldman's answer: It’s asking you/me to find the x-intercept at (A, 0) and the y-intercept at (0, B). By letting x = A and y = 0 in the equation of the line, we get: 2A = 20 A = 10 Then let x = 0 and y = B in the equation: 5B = 20 B = 4

05/02/2020

https://www.quora.com/In-which-quadrant-does-%CE%B8-lie-if-the-following-statements-are-true-cot-%CE%B8-0-and-cos-%CE%B8-0/answer/Larry-Feldman-7?ch=10&share=cd2a8792&srid=VPf8

Larry Feldman's answer: The easiest way to answer these types of questions, in my opinion, is to remember that cot equals x/y and cos equals x on the unit circle. If cot > 0, then x/y > 0. That’s only possible if x and y have the same sign, which occurs in quadrants 1 and 3. If cos > 0, then x ...

10/29/2019

https://qr.ae/TWovSo

Larry Feldman's answer: I’ll give you some hints. Call the given points A and B. Find the midpoint of AB. Call it (h, k). Find the slope of AB. Call it m. The equation is: y - k = -\frac{1}{m}(x - h). The rest is up to you.

09/04/2019

https://qr.ae/TWyS0v

Larry Feldman's answer: Ax + By = C By = C - Ax y = (C/B) - (Ax/B) y = (-A/B)x + (C/B)

04/10/2019

https://qr.ae/TWTG8M

Larry Feldman's answer: If y = a log(bx - c) + d is your log function, bx - c is called the “argument.” The vertical asymptote is the line whose x coordinates make the argument 0. Those x values are prohibited because you can’t take the log of 0. Setting the argument to 0: bx - c = 0 bx = c .....

03/06/2019

https://qr.ae/TWXHiT

Larry Feldman's answer: Using the 2nd Fundamental Theorem of Calculus: 2x\sqrt{1 + x^4}

02/16/2019

https://www.quora.com/Is-it-true-that-one-chance-in-10-50-can-never-happen/answer/Larry-Feldman-7?ch=10&share=7ffd5573&srid=VPf8

Larry Feldman's answer: It’s not true, especially if the experiment is repeated a ton. Assume a random variable follows a binomial distribution where: n = number of trials k = number of successes p = probability of success in any given trial P(k) = probability of k successes Then: P(k) = (...

01/30/2019

https://www.quora.com/What-is-the-ratio-of-areas-Kite-Square-Given-an-isosceles-triangle-inscribed-in-a-square-with-the-same-base-and-height-create-a-Kite-by-adding-diagonals-of-the-square/answer/Larry-Feldman-7?ch=10&share=1019d71c&srid=VPf8

Larry Feldman's answer: I got 1/12.

01/16/2019

https://www.quora.com/How-do-you-find-holes-in-rational-functions/answer/Larry-Feldman-7?ch=10&share=ead354e8&srid=VPf8

Larry Feldman's answer: Given rational function f(x) containing (x - k)^n in the numerator and (x - k)^m in the denominator: If n > m, there is a hole at (k , 0). If n = m, there is a hole at (k, g(k)), where g(x) is the simplified version of f(x). If n < m, there is a vertical asymptote at x ...

12/31/2018

https://www.quora.com/What-are-the-odds-of-winning-at-BINGO/answer/Larry-Feldman-7?ch=10&share=7674cdb0&srid=VPf8

Larry Feldman's answer: If there are N people each playing a single card, your probability of winning is 1/N. In other words, everyone has an equal chance. Your probability of losing is 1 - 1/N. So… Your odds of winning are 1/N : 1 - 1/N, which simplifies to 1 : N - 1.

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Chicago, IL

Website

http://www.lfeldman.com/

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