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y = arctan(x)tan(y) = xsec 2 (y) = dx/dyfrom cos 2 A + sin 2 A = 1, we know that 1 + tan 2 A = sec 2 A (divide by cos 2 A), so we substitute in1 + tan 2 (y) = dx/dyfrom the initial relationship,1 + x 2 = dx/...

There are three important factors to consider in order to interpret passages such as this: context, content and significance.The first, context, involves considering who is speaking, what comes before the pa...

Medical school personal statements can be difficult to write as you are addressing why you would like to be a doctor and you must think about the profession, rather than a single subject. Every description y...

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How far do you agree that women had made significant gains in their fight for equality by 1980s? In order to address the question, it is important to define the means to judge the term ‘gains’ upon. For this...