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IB DP Maths: AA HL复习笔记2.2.2 Factorising & Completing the Square
Why is factorising quadratics useful? Factorising gives roots (zeroes or solutions) of a quadratic It gives the x-intercepts when drawing the graph How do I factorise a monic quadratic of the form ...
Edexcel IGCSE Biology 复习笔记 3.2.1 DNA & the Genome
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Edexcel IGCSE Biology 复习笔记 3.1.6 Pregnancy
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Edexcel IGCSE Biology 复习笔记 3.1.5 Sexual Reproduction in Humans
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IB DP Maths: AA HL复习笔记2.2.1 Quadratic Functions
Quadratic Functions & Graphs What are the key features of quadratic graphs? The value of a affects the shape of the curve If a is positive the shape is concave up ∪ If a is negative the shape i...
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