More Lessons for A Level Maths

Math Worksheets

Videos, activities and worksheets that are suitable for A Level Maths.

How the function nCr is used in the binomial expansion and in the binomial distribution?

A-level Maths : The nCr function

The function nCr is used in the binomial expansion and in the binomial distribution. In this tutorial you are shown how to work it out manually and on a calculator.

In this video tutorial you are introduced to the binomial expansion as a method which reduces the amount of working in expanding a bracket to a given positive power.

In this video tutorial you are shown an example of expanding a bracket containing a negative term up to the term in x cubed. The aim of the tutorial is to show you how to set such a problem out and avoid common mistakes.

In this tutorial you are shown how to find a particular term or coefficient of a term in a binomial expansion without having to resort to the full expansion.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.