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How do you differentiate this

In differentaition, it is all about multiplying and taking away. Look at the first integer and the number that it is in the power off. You have to simply times the integer with the power of number and then d...
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Answered by Meghna D. • Maths tutor
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Describe how animals and plants are adapted to survive in dry conditions such as deserts. For each adaptation explain how this helps them survive. (6 marks)

There are many ways that animals are adapted to live in dry conditions. First, a decrease in surface area reduces water loss by minimising sweating. They may also have l ong eyelashes to keep dust out of the...
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Answered by Lucy B. • Biology tutor
21033 Views

Let y=arcsin(x-1), 0<=x<=2 (where <= means less than or equal to). Find x in terms of y, and show that dx/dy=cos(y).

First, the question asks us to find x in terms of y, or in other words, rearrange the equation to be in the form ' x= ' , rather than ' y= ', as it is currently. We start with y=acrsin(x-1) , as given in the...
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Answered by Kalina M. • Maths tutor
7910 Views

Which Tsar was famous for his Enthusiasm for France? http://www.lemonde.fr/arts/article/2017/05/29/vladimir-poutine-sur-les-pas-de-pierre-le-grand-a-versailles_5135554_1655012.html

Peter the Great. This leads on to further questions about the article and the current context of diplomatic relations between France and Russia. At A level the pupil will be encouraged to start expressing hi...
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Answered by Thomas W. • French tutor
3480 Views

What is the trend in electronegativity of group 7?

The electronegativity is the tendency of an atom to attract electrons towards itself in a covalent bond. The electronegativity of the halogens decreases down the group as the radius of each atom increases du...
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Answered by Seetal A. • Chemistry tutor
28730 Views