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There are 3 types of stationary points for functions: a maxima, a minima and a saddle point. They all occur when the derivative of a function, f(x), is equal to 0, e.g. f'(x)=0. Therefore in order to find...

Chain Rule: dy/dx = dy/du x du/dxy=e^3-2xSubstitute u for the power (3-2x) y = e^u u = 3-2xdy/du = e^u du/dx = -2dy/dx = -2e^u = -2e^3-2x

Throughout 'Mrs Dalloway', women are presented as being restricted by the dominating fears of failure, ageing and loneliness. The text is set in a post-war world (1923) where political turbulence has test...

DNA is much longer than mRNA and forms a chromosome, whereas mRNA is much shorter; corresponding to a single gene. DNA is structurally different; it is usually found as a double helix and contains the bas...

The nitrogen atom in both NH₃ and NH₂^- has 8 outer shell electrons. In NH₃, 3 pairs of these electrons are used in covalent bonding to hydrogen atoms and the re...