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Both eukaryotes and prokaryotes are types of living cell. The types of cell you normally consider in the animal body are eukaryotes. They have a cell membrane around the outside, with a nuceus in its own mem...

Given a reaction in the form: aA + bB ⇄ cC + dD where A and B are reactants, C and D are products and a, b, c and d are stoichiometric coefficients (relative number of moles of each molecule). T he equilibri...

A constitution is a set of principes laid out in a document for the running of a country. It covers the role of the executive (Prime Minister or President), the legislature (e.g. House of Commons) and the ju...

From the double angle formula for cosine, we know that cos(2x)=cos 2 (x)-sin 2 (x). Also, we know that sin 2 (x)+cos 2 (x)=1. So by substituting the second formula into the first, we can say that cos(2x)=(1-...

To differentiate tan(x): Note: Here, we use d/dx f(x) to mean "the derivative of f(x) with respect to x". 1) rewrite tan(x) as sin(x)/cos(x) 2) Apply the quotient rule (or, alternatively, you could...