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What is an acid?

A species that dissociates in water releasing Hions.

MS
Answered by Matthew S. Chemistry tutor
3750 Views

How to integrate by parts

Sometimes while integrating, we may come across an expression that is not a polynomial, and thus we cannot use the convenient power rule to integrate. Consider the function y=xcos(x). It is not immedia...

DL
Answered by Dennis L. Maths tutor
4619 Views

What are the steps in answering a source based question?

The best way to tackle a source based question is to use CATPAD. In this:

C: Content, i.e. what is actually in the source

A: Author, i.e. whow wrote it, if they had any pre-...

BP
Answered by Beth P. History tutor
16828 Views

Differentiate y = 4ln(x)x^2

So we want to differentiate y =  4x2ln(x) with respect to y. For this we need to use the product rule.

The product rule is D {f(x)g(x)} = f(x)g'(x) + g'(x)f(x)

We...

BP
Answered by Beth P. Maths tutor
6897 Views

Explain the main sources of monopoly power.

 - Barriers to entry, for example patents, restrict the number of competitors in a market. They may be deliberate, e.g. patents, or inherent in the good, e.g. water. Where they are inehrent, a 'natural...

BP
Answered by Beth P. Economics tutor
79769 Views

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