Top answers

Integrate by parts x2^x

Here we will use integration by parts because we have the product of two terms, x and 2^x. Using the integration by parts formula, we have to differentiate one of these terms and integrate the other. We choo...
TV
Answered by Thomas V. • Maths tutor
8779 Views

Write about your holidays; what your normally do; what you used to do; and what you will do next.

Quand j'étais plus jeune, j'allais en France pour mes vacances. J'allais avec ma famille et nous allions à la plage tous les jours. Je me baignais dans la mer avec ma sœur et après je me bronzais sur la plag...
FS
Answered by Faith S. • French tutor
2614 Views

What are two different ways cells of the body signal each other? Give an example of each.

Electrical signal, e.g. when you touch something hot, an electrical signal goes from your hand to your brain to tell you to pull your hand away. How do you know it's electrical? Because it's so fast! Chemica...
IH
Answered by Isobel H. • Biology tutor
4059 Views

Split x^4/[(x^2+4)*(x-2)^2] into partial fractions and hence differentiate it

The answer to this question will be explained during the interview session
AS
3153 Views

Sometimes, babies are born with a hole between the right and left ventricles of their heart. Why does this mean oxygenated blood cannot get around their bodies?

Higher pressure in the left ventricle (thicker wall, more contractile power) means that blood will cross from the left side of the heart to the right. This means that not as much oxygenated blood will be pus...
IH
Answered by Isobel H. • Biology tutor
4403 Views