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What is the process of the virus HIV replication?

The HIV virus enters the body via one of the fluids through which it is transmissible e.g. blood. It then binds itself to CD4 on the body's T cells and enters the cell via endocytosis. Once it is inside the ...
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Answered by Niamh P. • Biology tutor
8994 Views

Why were the Crusader States able to Survive between 1100 and 1124

Students will be encouraged to follow a structure that teaches all the skills relevant to exam questions and the Historical discipline in generalThey will have an introduction that sets out a clear view ie r...
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Answered by Joseph M. • History tutor
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Find the exact gradient of the curve y = ln(1-cos 2x) at the point with x-coordinate π/6.

The gradient to the curve is given by the derivative of the function y = f(x) = ln(1 - cos 2x). This function is a composition of two other functions so we need to use the chain rule to find the derivative. ...
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Answered by Archie R. • Maths tutor
7898 Views

How do I integrate tan^2 x?

Firstly, use the trigonometric formula tan 2 x = sec 2 x - 1 , which you can easily derive from sin 2 x + cos 2 x =1, by dividing both sides by cos 2 x and re-arranging. Now, you should remember that differe...
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Answered by Jakub C. • Maths tutor
12926 Views

I don't know what I am doing when I solve differential equations using the integrating factor and why does this give us the solutions it does?

Start by looking at the form of equation where we can use the integrating factor:y' + f'(x) y = g(x) The general principle of this method is that by multiplying our expression by some function of x it become...
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