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Evaluate the view that reducing unemployment inevitably has trade-offs with other macroeconomic objectives.

This is a typical essay question, so start off by defining key terms for later use in the answer, such as what a trade-off is, and what the other macroeconomic objectives are. Then, go on the apply and analy...
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Answered by Ross B. • Economics tutor
7903 Views

Show that 12 cos 30° - 2 tan 60° can be written in the form√ k where k is an integer

Firstly work out (using the sin cos tan triangle and soh cah toa) what cos 30° and tan 60° are equal to so tan 60° = √3 and cos 30° = √3 / 2 then substitute these values into the euqation giving 12 x √3 / 2 ...
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Answered by Eve N. • Maths tutor
33041 Views

How do you differentiate y=sin(cos(x))?

To solve this question we will use the chain rule, as we can see that we have one function being applied to another, i.e sin is being applied to cos(x). This means we are able to replace the original functio...
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Answered by Marcel P. • Maths tutor
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Kelly is trying to work out the two values of w for which 3w - w^3 = 2 Her values are 1 and -1 Are her values correct? You must show your working.

Firstly substitute her first value into the equation so w=1 giving (3 x 1) - (1)^3 = 3 - 1= 2 so her first value for w is correct Next substitute the second value into the equation so w= -1 giving (3 x -1) -...
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Answered by Eve N. • Maths tutor
11188 Views

GCSE: How do you find the bearing of point B from A?

Draw a line pointing North from point A. Use a ruler to draw a line that joins points A and B. Use a protractor to measure the angle between the line that is North of A and the line that joins A and B This a...
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Answered by Marcel P. • Maths tutor
17557 Views