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A well structured essay opens with the author's intention; in the first paragraph, you outline what the following essay is about. For example, when comparing two poems, the opening paragraph will mention ...
The 把 (bǎ) sentence structure is useful for constructing sentences where the focus is on the result of an actionIt's very common in Mandarin but can feel a bit strange for english speakers as the verb is ...
The heartbeat is started at a specialised area of the right atrium, known as the sinoatrial node (SAN); the SAN sends out the waves of depolarisation, resulting in contraction of the card...
The French imparfait of the verbs has the same use as the English past continuous: it refers to an action which was ongoing in the past until interrupted.
Use the chain rule as this is a composite function. Let u=2x+5.So the original equation becomes y=(u)^2.Using the chain rule: dy/dx = dy/du * du/dxdy/du = 2udu/dx = 2So dy/dx= 4uSince u=2x+5, dy/dx = 4(2x...
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