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Analytic Trigonometry

• Explain notation for sum of cos terms
  Please explain the meaning of the notation used in Wikipedia for a trig identity involving... gtr109 2018-04-02, 10:34

Counting and Probability - Introduction

• Combinatorics
  5 Chinese, 5 Russians and 5 Mexicans are sitting in a row in such a... alex.vollenga 2017-05-19, 09:58
• Permutation with restriction
  Hello everybody. I have the following problem. Three irrigation events should implemented in a 19days... Ioannis 2018-12-06, 03:20

Systems of Equations

• How to solve Fizzbuzz Problem
  Hello, I'm trying to solve the fizzbuzz problem on interviewbit.com URL: FizzBuzz - InterviewBit Can someone help? jenni9 2018-08-10, 05:32

Series and the Binomial Theorem

• Re: Series
  There are many solutions of the nth term for your question such as ... Majid67 2018-07-07, 03:14

Analytic Trigonometry

• Re: Trig identity (sinx+cosx)^2tanx = tanx+2sin^2x
  You're welcome! Murray 2015-12-29, 09:13

Applications of Integration

• Re: Catenary equation
  Hi Murray. Can you help me with my math exploration for IB about catenary equations? belaldaqqah 2019-01-16, 01:54

Differential Equations

• Re: polygons
  We took "vertex-to-vertex" to mean non-adjacent vertices as well as adjacent vertices. So we... phinah 2019-06-20, 11:41