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Maths
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Find the stationary point of y=3x^2-12x+29 and classify it as a maximum/minimum

The stationary point of a curve is where it changes direction, that is the gradient goes from pos...

JS
Answered by James S. • Maths tutor
7815 Views

What is the cosine rule and when can it be used?

The cosine rule is used to find the length of a side or size of an angle. 

Take a look at the triangle below: 

KL
7488 Views

How do I solve a simultaneous equation?

You will be presented with two equations, both with two unknown values. For example:

8x-2y=19

and

3x=5+y

 

To begin, we are going to move both unknown terms in ...

PC
Answered by Paul C. • Maths tutor
5770 Views

How do I integrate sin^2(x)?

First, remember the compound angle formula for cosine:

CD
5917 Views

Factorize 9x+3xy-9zyx

=3x(3+y+3zy)

NC
Answered by Nicholas C. • Maths tutor
3518 Views

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