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How do I know whether a word is masculine or feminine?

In French it is often essential to know what gender a particular word is in order to be able to construct a sentence effectively and without errors. 

However, it is not always immediately clea...

MS
Answered by Marco S. French tutor
84422 Views

Why is the Product Life Cycle such a useful tool to use in business?

The product life cycle is a business marketing tool in which it is able to assess the stages a product goes through in its life. The four stages are

1. Introduction - Where the product is intr...

AB
8992 Views

How to factorise any quadratic expression

Factorising quadratic equations

This method is used for the following factorable expression:

ax2+bx+c

Although this method is particularly useful wit...

AP
Answered by Adil P. Maths tutor
5673 Views

How do I integrate ln(x)

This is an integral many people struggle with, but, with a simple trick it becomes a little more straight forward. We will approach this integral using integration by parts.

But what are the p...

TM
Answered by Tom M. Maths tutor
5515 Views

How do you invert a 2x2 matrix?

Take a matrix A=(acbd), where a,b,c,d are numbers.

First find the determinant. This is ad-bc.

Now, rearrange the matrix to become (...

YP
6408 Views

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