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When do you use integration by parts?

The formula for integration by parts is Integral(udv/dx)dx = uv - Integral(vdu/dx)dx
You use integration by parts when you have an integral where you have to terms multiplied together ie Int...

AB
Answered by Alex B. Maths tutor
4802 Views

Describe the ventilation mechanism in fish

The buccal cavity of the fish opens and the buccal floor moves downwards. This creates a larger volume in the buccal cavity causing pressure to fall relative to the pressure in the external environment. W...

VA
Answered by Victoria A. Biology tutor
14679 Views

'Assess the importance of presidential debates' (15 marks)

One reason that presidential debates are important is because they help voters learn about candidates, and subsequently how to vote. For many, these debates are what they reply upon when deciding how to v...

NW
Answered by Niamh W. Politics tutor
6151 Views

When do I know whether to use "tu" or "vous"?

By default it is always better "vous" which is the polite form for "you", which you would use for a teacher, while "tu" should only be used with friends and close family memb...

DV
Answered by Donatien V. French tutor
1750 Views

How do you know the gender of French words?

In English we only use genders for people. In French everything has a gender and knowing it will allow you to use the right article, pronouns and ending of adjectives.
There are no absolute rules on ...

DV
Answered by Donatien V. French tutor
1682 Views

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