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Prove that 2Sec(x)Cot(x) is identical to 2Cosec(x)

2 Secx = 2/CosxCotx = 1/Tan x = Cosx/SinxTherefore: 2SecCotx = 2/Cosx * Cosx/Sinx = 2/Sinx = 2Cosecx
BS
Answered by Ben S. • Maths tutor
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How do I approach: "Explore the significance of justice and injustice in two crime texts you have studied"

This type of question crops up in the AQA A Level English Lit B in papers 1 and 2 for both options (here it is for Crime, but also applicable for Tragedy, Comedy and Social/Political Protest). The question i...
SS
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How do I write a comparative essay?

The key to a comparative essay is to be consistent with your comparisons throughout. As with all essays, your theme and argument should be present from your introduction and run through to your conclusion. T...
Answered by • English tutor
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Which is preferable inflation of deflation? (25 marker)

The key to getting into the top band of the mark scheme for 25 markers is to show sustained evaluation throughout the response.A very useful formula for answering these sorts of questions is to start with so...
Answered by • Economics tutor
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Which influenced Charlemagne more his dealings with Byzantium or with the Anglo-Saxons? (10 Marks)

This is a standard 10 mark question in the unit 2 of OCR A-Level History. The key is to not spend too long on the 10 marker as you can get near full marks by writing two solid paragraphs on each segment of t...
Answered by • History tutor
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