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(STEP I 2017, Q1i)For the first part, the hint u = x sin(x) + cos(x) is given. It can be seen that this is the denominator once the fraction is multiplied by cos(x) / cos(x). The answer is ln(x sin(x) + c...
Meine Freunde und ich helfen gerne alten Menschen. Im Moment haben wir keine Zeit, da wir viele Hausaufgaben erledigen müssen.Letzte Woche ging ich für meine Großmutter einkaufen, als sie krank wa...
After the Second World War, most of the countries within Europe were bankrupt or had very little money. These were the perfect conditions for support of communism to grow, since it promised moving wealth ...
We need to find the value of X (the water of crystallisation) and to do this we can start by calculating the moles of water lost and the moles of the anhydrous salt (the salt product without water), we do...
As can be seen by studying the gradients of sin(x) at key points such as 0, 90, 180, 270, 360 degrees, the gradient of sin(x) at any point, x, is equal to cos(x). [This would be shown on sketches of the f...
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