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The verbs 'ser' and 'estar' both translate to the English 'to be'. But don't worry! There are some key differences that help us know which Spanish verb we should use. 'Ser' is used to describe permanent c...
Question7. A complex number z is given by z = a + 2i where a is a non-zero real number. (a) Find z2 + 2z in the form x + iy where x and y are real expressions in terms of a. (4) Given that z2 + 2z is real...
An “antigen” is a specific foreign molecular entity which is bound by antibodies during an immune response. Examples of antigens include peptides from bacterial surface proteins, which signal the presence...
A burrette is a measuring apparatus a burrette measures the volume of liquid delivered during a titration. with each measurement there is an uncertainty with the recorded measurement of delivered liquid. ...
The word ‘Culture’, is, as argued by Peter, one of the most complicated words in the human language. Prior to outlining how culture has changed and discussing whether it can be managed, we firstly need to...
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