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How do you differentiate using the chain rule?

At first the chain rule can seem quite daunting and convoluted but with a few examples over the course of this lesson, it will seem simpler and more intuitive. The chain rule is used where the equation that ...
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Answered by Alex K. • Maths tutor
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'The most important reason for the outbreak of a general European war was Germany's 'blank cheque' to Austria-Hungary.' Explain why you agree or disagree with this view of developments in 1914.

The actual question asks whether or not you agree with the quotation. You need to demonstrate knowledge of both sides but must ultimately come to a clear judgement.The quotation refers to Germany's 'blank ch...
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Answered by Oliver B. • History tutor
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What normative ethical theory is the best at dealing with moral problems?

The question asks which normative moral theory is the best at serving some kind of purpose, so to properly answer this question we need to consider multiple normative moral theories. The three main theories ...
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Answered by Hazel E. • Philosophy tutor
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Can you explain the oxygen dissociation curve.

What is the graph telling us?On the graph, we can see two axes. We have partial pressure of oxygen on the X axis and Hb saturation on the Y axis. Partial pressure is another way of saying how much oxygen the...
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Answered by Thomas K. • Biology tutor
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Write a critical assessment of Emily Dickinson's "I heard a fly buzz -- when I died --"

At A-Level, it is common practice to address an essay on a poem one of two ways: Chronologically Thematically Either of these approaches are totally acceptable but perhaps in this instance, given that the Di...
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