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Maths
GCSE

How can I tell if two lines are perpendicular from the equations?

In order to compare two equations they need to be in the same form. This means that the y's have to be on the left, and the x's have to be on the right - so the first step is to rearrange both of the e...

Answered by Ben S. Maths tutor
5887 Views

How do I subtract one fraction from another?

If you have the question:

What is 2/3 minus 1/5?

You should start this question by looking at the demoniators (the bottom of the fraction). You want to get a number that is ...

Answered by Jessica C. Maths tutor
4136 Views

How do you differentiate x^x?

There are two ways we can find the derivative of x^x.

It's important to notice that this function is neither a power function of the form x^k nor an exponential function of the form b^x, so we...

Answered by Alina K. Maths tutor
342130 Views

How do I solve simultaneous equations?

Always follow the same three steps : equating – substracting – substituting but you can have different cases : 

Case 1: we only need to multi...

Answered by Roxane Z. Maths tutor
4337 Views

What is the perpendicular bisector of the point (0,2) and (1,0)?

First things first it will definately be useful to make a quick sketch of the x-y axes, the two points, and roughtly what the perpendicular bisector will look like.

This kind of question ...

Answered by Josh R. Maths tutor
5530 Views

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