Remember at school, when your maths teachers would impress upon you the importance of showing your working out? When it came to homework, tests and exams, it was never enough to just give the answer, ...
Inequalities that use < or > symbols are plotted with a dashed line to show that the line is not included in the region. Inequalities that use ≤ or ≥ symbols are plotted with a solid line to show that ...
GCSE examiners have been accused of being "masochists" for setting a maths question that students claimed was "impossible". Thousands of 16-year-olds across England sat the exam last week but found ...
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