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The introduction to your English essay is all about opening up, clearing up and getting your readers prepared for the nature of your answer. In other words, the introduction should warm your reader up ...

FIrslty to avoid confusion:

x = the variable x

X = multiplication.

When you differentiate an equation, the derivative (answer) is referred to as...

There is a subtle point to be made here, which comes down to double counting. The addition rule:Pr(A union B) = Pr(A)+Pr(B)-Pr(A intersection B)allows us to work out the probability that either event A or...

              Take a general function f(x) = ax²+bx+c

   First thing to do with every problem is sit back and think a bit: there are usually several ways to solve a problem but one will l...

Structured interviews are used in psychology when carrying out interviews where the questions are predetermined and in a certain order. The order and structure never changes for any participant.The advant...