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Find the coordinates of the stationary points y=x^4-8x^2+3

Begin with the equation: y = x4-8x2+3. Differentiate by bringing the power down and reducing the power by 1 of each of the terms with x in and constant terms (3) become zero. dy/dx =...

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Answered by Finlay H. Maths tutor
5680 Views

If the function f is defined as f= 1-2x^3 find the inverse f^-1

Set the function equal to y so y=1-2x^3now rearrange this to set x as the subject 2x^3= 1-yx^3 = (1-y)/2x = ((1-y)/2)^1/3therefore the inverse is f^-1 = ((1-x)/2)^1/3

KK
Answered by Kavita K. Maths tutor
2847 Views

Differentiate y=x^2cos(x)

This is done using the product rule: dy/dx=udv/dx +vdu/dxset y=uv therefore u=x^2 v=cos(x)differentiate these with respect to x du/dx= 2x as you multiply by the power and then subtract the power by 1dv/dx...

KK
Answered by Kavita K. Maths tutor
2599 Views

What is the difference between the preterite and imperfect tenses?

Imagine a long line stretching from the present moment all the way back into the past. We can explain these two tenses by the way we mark them on the line. The preterite tense, generally representing past...

WT
Answered by William T. Spanish tutor
1538 Views

How to effectively write a personal statement?

In order to do that firstly you need to ask yourself why are you applying for this specific course? It is a good practise to start it with writing down bullet points with all of the ideas. Then you can se...

1634 Views

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