Top answers

Find the derivative of f where f(x)=a^x.

This is a difficult question that you only need to know the result of.However, it's a good exercise to derive it. Starting with f(x)=a x we can take the natural logarithm of both sides (so we can use one of ...
LR
Answered by Larry R. • Maths tutor
4900 Views

How do I find key themes?

To find key themes in poetry and prose you should revise the content of the text in order to group similar events or similar words. For example, you would find a lexical set of greed in Seamus Heaney's 'Blac...
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Answered by Sioned D. • English tutor
3193 Views

Find the inverse of the general 2x2 matrix A= ([a, b],[c, d]) when does this inverse exist?

This is a typical further maths question, doing it correctly is a matter of carrying out a two-step process. Start by finding the determinant of the matrix, det(A)=ad-bc Then swap the entries a d and negate ...
LR
4220 Views

How do I analyse a poem?

As you approach a poem you should consider dividing your analysis into different sections such as form, structure and language. To begin, you should try to understand the content to an extent and then take a...
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Answered by Sioned D. • English tutor
3439 Views

How would you express (11+x-x^2)/[(x+1)(x-2)^2] in terms of partial fractions?

The first thing to consider when converting an expression to impartial fractions is how many fractions you will have in the end. With linear (no powers) brackets, found in the denominator of your initial fra...
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Answered by Matthew M. • Maths tutor
8002 Views