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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...

In French, they are three groups of verbs, verbs that end in -er (eg manger), verbs that end in -ir (finir), and verbs that end in -re, -oir, or -ir (faire, pouvoir, or devenir). The verb endings are the ...