The hardest 2020 Maths Extension 2 question explained | It's the hardest question in the Higher School Certificate, designed to differentiate the most able of mathematics students. Watch Sydney Technical High...
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CambridgeMATHS Stage 6 Mathematics Extension 1 Year 11 (print and interactive textbook powered by HOTmaths)
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Lol, this the type of math questions they're asking in schools nowadays. Mathematics Extension 2 NSW : r/cognitiveTesting
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