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How do you differentiate a function containing e?

y = e x is an interesting function because for any value of x, the corresponding value of y is always equal to the gradient of the curve at that point.Therefore, f(x) is equivalent to f'(x) - the derivative ...
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Answered by Finn H. Maths tutor
4882 Views

What are some key components within the cell surface membrane, and what are their functions?

The cell surface membrane is formed of a phospholipid bilayer, in which the hydrophillic phosphate heads point outwards and the hydrophobic tails point inwards. This forms a barrier for large molecules such ...
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Answered by Maria K. Biology tutor
3214 Views

How do I set out my introduction?

Due to the time limitation during your exam, it's important to make sure that your introduction is short, snappy and gets to the point right away. Generally, the basic structure of an exam introduction would...
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Answered by Kira B. English tutor
2281 Views

How do I rationalise the denominator of √2+1]/√2-1?

We must choose something to multiply the numerator and denominator of the fraction by the same thing, and the best thing to choose is the difference of two squares (since (x^2-y)(x^2+y)=x^2-y^2 ). So we do (...
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Answered by Harry J. Maths tutor
6269 Views

Outline the difference between "positive" and "negative" freedom?

The distinction between positive and negative notions of freedom can be traced to Isaiah Berlin and his 1936 essay: "Two Concepts of Liberty". Negative freedom is defined as freedom from obstacles,...
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Answered by Rooban S. Politics tutor
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