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A stationary point is where the gradient is exactly zero - the curve is neither increasing or decreasing. This means that we need to differentiate y to find dy/dx and then set this equal to 0. Doing this,...

Write the equation and balance it. CH4 + 2O2 --> CO2 + 2H2O Assign the enthalpies of formation and the sign of the energy value with the corresponding molecule (Will demonstrate my technique if needed)...

First write tanx as sinx/cosx as it is always helpful to use what additional information the question gives you. It says we must use the quotient rule to calculate the result so it is also a good idea to ...

The aims of Mussolini's foreign policy can be aptly summed up in his own words: to make Italy 'great, respected and feared'. He consistently tried to secure this reputation for Italy, but his methods chan...

You’re going to have to go through relatively large amounts of text very quickly in this section, so you’ll have an advantage if you’re a fast reader. I don’t teach you to read the passage in our strategy...