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let y=sec(x) = 1/(cos(X)) = cos(x) -1 Thus dy/dx = -1(cos(x)) -2 (-sinx) = sin(x)/(cos(x)) 2 = 1/cos(x) x sin(x)/cos(x) =sec(x)tan(x)

To understand how HIV causes infection, students should have an appreciation for its basic virus structure and how it infects humans. Following infection, how does it cause disease and eventually AIDS? Why a...

Here is a sample question from the writing task of the BMAT exam. 4. Parents who withhold vaccines from their children have betrayed their duty of care. How would you go about answering this? The answer is p...

Oxbridge applications. We've all heard the rumours flying around about how your interviewers ask you to balance on your head whilst solving a simultaneous equation and reading a book. This is simply NOT true...

Writing an original personal statement that shows off your skills and achievements can be tricky. Firstly I'd recommend sitting down with a piece of paper and writing down all the reasons you want to do medi...