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You must remember to always refer back to the mark scheme for the exam that you will be taking. When looking at past pap...
When rationalising, multiply the fraction by the denominator - so what that means is multiply the fraction by the square rooted number over the square rooted number. The numerators then multiply to give 6...
Both the “Plusquamperfekt” and the “Perfekt” are past tense, each of them describing a different level of the past – highlighting the relationship between several actions in the past. The “Perfekt” ...
x2+4x-21= 0, This can be factorised into brackets as shown: (x+2)2 - 4 - 21 = 0 SImplified, so all x's are on one side of the equation: (x+2)2 = 25, Removing square root,...
dy/dx= (2 * 8)x(2-1) +4 = 16x + 4
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