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Maths
A Level

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
7403 Views

How do I integrate sin^2(x)?

First, remember the compound angle formula for cosine:

CD
5541 Views

What is the sum of the first n terms of a geometric sequence and where does it come from?

Recall that a geometric progression is a sequence (a_n) defined ...

KN
Answered by Kamil N. Maths tutor
4767 Views

What is the 'chain rule'?

The chain rule is incredibly useful when differentiating compositions of funcions. 

 

Until now you have really only met dy/dx as your derivative. By imagining dy/dx as a fraction, you...

JA
Answered by James A. Maths tutor
4461 Views

How do you take the derivative of a^x ?

There are two ways you can take the derivative of a^x.
1) 
Let y = a^x  now we're trying to find dy/dx
2)
ln(y) = xln(a)  take logs of both sides and use log rules
3)
(dy/dx)...

SG
Answered by Sam G. Maths tutor
6368 Views

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