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Find the volume of revolution about the x-axis of the curve y=1/sqrt(x^2+2x+2) for 0<x<1

The volume of revolution is given by integrating Piy2 dx from 0 to 1.Squaring, y2=1/(x2+2x+2)Completing the square, we see that y=1/((x+1)2+1)Make the subst...

HG
1886 Views

When do I use the perfect or imperfect tense?

When talking about the past in French, the two commonly used tenses are the passé composé and the imparfait. It is important to consider which of these tenses to use, otherwise you may n...

HL
Answered by Hannah L. French tutor
1477 Views

Outline what psychological research has shown about short-term memory according to the multi-store model of memory.

According to the multi-store model of memory, short-term memory is a unitary store with a very limited capacity and finite duration. Miller (1956) demonstrated that short-term memory has a capacity of 7 i...

TG
Answered by Tara G. Psychology tutor
16791 Views

Describe what is meant by a chronic disease, and give an example.

A long-term health problem that requires ongoing management over a period of decades or years. It often cannot currently be cured, nor does it disappear, but is managed with medicatio...

MB
2594 Views

Source based question: using the sources, assess how convincing the arguments are in relation to the threat to Henry VII in the years 1485-1509.

*(I'll put the sources on the whiteboard or explain them, but a lot of history a level is sourced based so I felt it appropriate to use them)
These sources address the stability of Henry VII and com...

SS
Answered by Sally S. History tutor
3848 Views

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