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Given that y = 4x^3 – 5/(x^2) , x =/= 0, find in its simplest form dy/dx.

We are given: y = 4x^3 – 5/(x^2) To find the dy/dx we are going to use the power rule, from the power rule differentiating x^n gives n*x^n-1, so from our equation differetiating x^3 will give 3x^2, but we ne...
MA
Answered by Mohamed A. • Maths tutor
5880 Views

Explain why a firm in Perfect Competition earns supernormal profits in the short-run

A perfectly competitive market is a market where a large number of firms produce identical products (perfect substitutes). The characteristics that define perfect competition are the following: - no barriers...
NV
Answered by Nora V. • Economics tutor
21698 Views

How can geographers help to tackle climate change?

Geographers bring a range of perspectives and analytical lenses to the table when it comes to climate change; perhaps the grandest problem facing the world today. As the discipline of geography is broadly co...
JT
4218 Views

Explain how fiscal stimulus might be used to bring about supply-side improvements in the UK economy.

Begin by defining fiscal policy and a supply-side improvement (the latter should be supplemented with a diagram). Following the definition of a supply-side policy, we might begin with examples of fiscal poli...
JS
Answered by James S. • Economics tutor
2839 Views

How can you express the complex number z = 2 + 3i in the form z = r(cos x + i sinx)

First you want to draw the complez number on to an argand diagram, using which you will find the modulus and argument. This is how to do so: The modulus is to be obtained using pythagoras (which will be easi...
MB
Answered by Meghali B. • Maths tutor
9918 Views