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First and foremost, the tenses in French can never be translated literally from English! Whether the phrase 'I was walking' is translated into PC or imparfait is determined by the context of the phrase in...

The Loop of Henle is a 'U' shaped portion of the nephron tubule which is very important in retaining water and Na+ from urine, in the process of 'Osmoregulation'. Water leaves the descending limb of the L...

To answer, you need to know and be able to use your trigonometric formulae including the double angle formulae on data sheet.

1: cos(3x)=cos(2x+x) = cos(2x)cos(x) - sin(2x)sin(x)        split the 3...

By raising the temperature of the reaction mixture, the particles have more (kinetic) energy and so move around at a greater rate. This means there are more frequent collisions, due to the increased speed...

Multiply out the denominator, take care to multiply both sides of the equation:

(2x+3)(2x+1) - (2x-8)(x-4) = (2x+1)(x-4)

Expand the brackets, pay attention the the signs when multiplying, ex...