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Find the stationary point of the curve y = -2x^2 + 4x.

Firstly, since we have a negative coefficient of x^2, we know we are looking for a maximum point. It is also always helpful to draw a sketch so you know what's going on. Whiteboard sketch. Now to...

LJ
Answered by Luke J. Maths tutor
5447 Views

What is the best way to approach an unseen piece?

Read through the whole piece, underlining anything that is immediately striking / a bit interesting, even if you don't quite know why at first. Depending on whether you've been given a prompt (i.e. discus...

JS
1378 Views

The Curve C has equation y = 3x^4 - 8x^3 - 3. Find dy/dx.

The question is asking us to differentiate the equation y = 3x^4 - 8x^3 - 3. To differentiate this equation, we must differentiate term-by-term. In order to differentiate a term, we must multiply the coef...

DC
Answered by Dharmik C. Maths tutor
5818 Views

Describe the structure and function of plasma membranes.

All plasma membranes are composed of phospholipids, cholesterol, proteins, glycoproteins and glycolipids. The structure of the membrane can be described by the fluid mosaic model, where phospholipids are ...

MJ
Answered by Milly J. Biology tutor
7154 Views

Describe the use of rhythm and metre in J.S Bach's Fugue no.21 in Bb Major BWV 866.

Starts with a simple rhythm composed of quavers and semiquavers. Polyrhythms then emerge as multiple different rhythmic lines emerge. It is in 3/4. Some of the rhythms are syncopated as notes become held ...

TH
Answered by Tom H. Music tutor
3724 Views

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