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How do we know that the derivative of x^2 is 2x?

To answer this we must remember that the derivative at a point on a curve, in this case x^2, is simply the value of the gradient of the line that just touches that point on the line. We can start by approxim...
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Answered by Jamie M. • Maths tutor
5197 Views

Find the integral of ln(x)

To solve this, we must use integration by parts as we can’t solve it directly. The formula for integration by parts is integral(U dV)=U V-integral(V*dU). The trick with this is to set dV=1 and to set U=ln(x)...
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Answered by Matilda R. • Maths tutor
6130 Views

What is the differences between a codified and uncodified constitution?

A constitution is a set of principals which govern a state, and make up the supreme law of the land. A codified constitution is contained in a single written document, which is fully entrenched in law and th...
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Answered by Felicity M. • Politics tutor
11100 Views

Why did the British government initiate a truce with the Irish in 1921?

The British government were finding it increasingly difficult to deal with the type of warfare the Irish were engaging in, (guerrilla warfare) as in their eyes the IRA was just a small "murder gang.&quo...
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Answered by Emily B. • History tutor
2854 Views

What is a niche?

A niche is the functional area within which an organism exists. This can be a specific habitat it inhabits, how it shelters itself, a food source it can exploit and can include all abiotic or biotic interact...
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Answered by Thomas R. • Biology tutor
13945 Views