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The most important thing is clarity. At A level and GSCE, the examiner should know what you are arguing immediately; try summing up your argument in one succinct line. After that, it can be useful to outl...

Given y = 2x(x² – 1)⁵, show that
(a) dy/dx = g(x)(x² – 1)⁴ where g(x) is a function to be de...

√40 + √90

= (√10 x √4 ) + (√10 x √9 )

= 2√10 + 3√10=5√10

Preterite- would be used for SINGULAR actions in the past; completed actions Imperfect- repeated actions in the past( saying I used to do something...) or descriptions We generally say that imperfect is a...

The digestive system is a tube starting from the mouth and ending at the anus. Between are different compartments with different roles. The first stage of digestion occurs in the mouth. The teeth grind th...