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Rearranging gives:4cos(x)-1 = 2sin(x)tan(x) Substituting in tan(x)=sin(x)/cos(x) gives:4cos(x)-1 = 2sin(x)(sin(x)/cos(x))2sin²(x)=4cos²(x)-4cos(x)Substituting in 2sin^2<...

The new cell must be a genetically identical copy of the first cell. Both daughter cells must receive a full copy of the DNA.

The key to this kind of question is how you word your answer - you vocabulary must be very specific.You are looking to highlight that microbes can respire faster, which in turn let...

A 16-mark question can be broken down into two or three objectives: AO1 (content), AO2 (application) and AO3 (evaluation). Depending on the question you will be asked for just AO1 and AO3 or AO1, AO2 and ...

The first ionisation energy is the energy required to remove an electron from a gaseous atom.
The equation for the first ionisation of Chlorine is: Cl (g) --> Cl+ (g) + e-