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Two events are independent if and only if the product of their own probabilities is equal to the probability of them both happening, that is :A and B independent <=> P(AnB) = P(A)...
[Co(CN)6]4-CN has -1 charge so overall charge is -4. CN- is similar sized ligand to H2O so shape is unchanged and remains octahedral.
This is a very typical question for history A-level exams and I would suggest that a student approached it in four factors. The factors that I propose caused Hitler to become chancellor are 1) The failure...
Firstly we need to expand out y into a series of terms to make it easier for us to compute the derivative . You multiply out the brackets to get y=(x3-3x2+4x-12)/2x then we divide ea...
A-Level Biology has probably the most content of any of the A-Level sciences! Its tempting to memorise all the content in the textbook but in reality some textbooks will have extra information that is no...
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