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How should I approach an A-Level source based question?

One of the most important things to consider when approaching a source based question, is to consider the context of the text. This can be done by thinking 'who, what, when, and where?' This means that you s...
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Answered by Phoebe R. • History tutor
4454 Views

How far does source x agree with source y?

P1: Instances where both agree: -Use quotes. -Explain why this shows agreement. -Repeat for other areas of agreement. P2: Areas of disagreement: -Use quotes -Explain why this shows disagreement. -Repeat for ...
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Answered by Edward L. • History tutor
11492 Views

Solve the equation 5^x = 8, giving your answer to 3 significant figures.

Since there is an x written as a power here, it suggests that this question should be solved using logs (here assume I am using the natural logarithm, which has base e). Taking logs of both sides of the equa...
HM
Answered by Hannah M. • Maths tutor
23354 Views

Prove that 1/(tanx) + tanx = 1/sinxcosx

The key here is to realise that tanx = sinx/cosx. If we write out the left hand side of the equation in terms of sine and cosine we get: cosx/sinx + sinx/cosx These two fractions can be put over a common den...
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Answered by Hannah M. • Maths tutor
23214 Views

What is data validation and data verification?

Data Validation Data validation is the process of comparing data with a set of rules to find out if data is reasonable. There are many types of data validation such as: -Format check: Checks data is in the r...
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Answered by Carlota O. • Computing tutor
35931 Views