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This is a typical gradient question for A2 papers, as it requires use of the Product Rule and Chain Rule, as well as knowledge of e^x. Firstly, we can see that we will need to use the Product Rule as e^2-x a...

The ‘passato prossimo’ tense is the ‘near past’ and the most frequently used past tense in the Italian language, especially used in conversation. The passato prossimo is formed with the auxiliary ‘To be’ or ...

Every Spanish noun is either feminine or masculine and follows an article of the same gender. Masculine articles ​El / Un (masculine singular article) + masculine singular noun e.g. el chico Los ( masculine ...

A pendulum bob will move fastest when the mass is at its lowest point (when x=0). The reason for this is that in the pendulum system energy is transferred between kinetic and gravitational potential energy, ...

The centripetal force can be thought of as the force that causes circular motion. When an object moves in a circle a force must always act on it, even when it moves at a constant speed. This is because veloc...