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Begin with a diagram of the system, and definition of directions. Vertically up and clockwise rotations are positive. It must be recalled that in SHM force is proportional to displacement from equqilibriu...

The derivative can be found by using the chain rule. i.e. let g(x) = |sin(x)|, so f(x)=ln(g(x)), hence df/dx = df/dg * dg/dx

df/dg = 1/g, dg/dx = |cos(x)| so df/dx = |cos(x)|/|sin(x)|

For th...

In the same way the context in which a text is written influences the author's final product, the historical period in which that text is interpreted greatly shifts our perception of its themes and messag...

El préterito perfecto es el equivalente del past perfect, que utiliza el verbo auxiliar haber + el participio del verbo principal como en inglés have + past participle. Por ejemplo, yo he comido,...

The main points on how and when to use quotes are:

1. Only include relevant quotes that support the overall argument. Do not just include random quotes to try and impress the examiner with y...