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Even when you're super prepared for an exam, a subject like history can throw you a curve ball, so what can you do when you look at a question and think there's just no way you could answer it?

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We have to use the chain rule here. If we set u to the inside of the bracket, u = x^2 + 3 and differentiating we get du/dx = 2x. Now the original expression becomes y = u^2. Differentiating this with resp...

When looking at this Question you need to decide the impact Martin Luther had on the Reformation. Such as the impact of his 95 theses published in 1917, his exploitation of the printing press, his charism...

In base-10 (denary) representation numbers are represented by saying how many units, tens, hundreds, thousands etc... there are from right to left. So for 74 there are 7 tens and 4 units. In binary, each ...

When simplifying surd expressions we want to look for square numbers that are factors of the number inside the square root. If we list the square numbers (which are numbers that are the result of squaring...