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A Level

Why does the chain rule work?

One of the best ways to view dy/dx is as a fraction. When we have y=f(g(x)), we need to make a substitution u=g(x) to find dy/dx. This leaves us y=f(u) and u=g(x). Differentiating said terms leaves us wit...

SV
Answered by Sam V. Maths tutor
3134 Views

Separate (9x^2 + 8x + 10)/(x^2 + 1)(x + 2) into partial fractions.

First, we find the form of the two fractions we're going to get. As one denominator has a power of 2, and the other a power of 1, our answer will be of the form: [(Ax+B)/(x2+1)] + [C/(x+2)]. If...

LU
Answered by Laura U. Maths tutor
4494 Views

'Ariel and Caliban are equally enslaved' Use your knowledge of the play as a whole, and show how far you agree with this view.

Ariel and Caliban are two characters liberated at the end of the play, and left behind on the island when Prospero, their master, leaves. It is made clear very early on that neither creature is at liberty...

AO
9666 Views

Idea and Development of ideas.

After you have done enough research on the main theme of your exam paper and generated some ideas, start doing some basic sketches. Think about the colour spectrum you might use to emphasize a certain ide...

PN
Answered by Polina N. Art tutor
1648 Views

To what extent do the Roman sources praise women for the way they perform their duties and to what extent do they criticise them?

Writing under Augustus, Livy composed propogandic material depicting the actions of Cloelia when she acted as a hostage as part of the peace treaty between the Romans and the Etruscans. In the source Cloe...

ZG
1531 Views

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