AQA A-Level Further Maths D9-01 Inequalities: Introducing Rational Function Inequalities

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Комментарии
Автор

Very nice video easy to follow, good jod🥳🥳🙌🏽🙌🏽

dyanazemia
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I'm doing Edexcel A level maths and I have to learn the algebraic method (it says in the spec e.g a/x < b becomes ax < bx^2), but I agree with you that sketching it makes much more sense as seeing it really helps understand what is actually happening! I wish I could just learn that method :(

vikingsnowflake
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how does multiplying the left hand side by x+1 leave you with x+1. surely it should leave you with 1 because the x+1 on the denominator cancels it out, no?

arakurd
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Hi Jack - do you have any videos on finding turning points of rational functions using the discriminant yet?

jordanw
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on a lot of the Edexcel 6/7 marker inequalities with algebraic fraction questions it specifically states *use algebra* so does that mean if you took the graphical approach that involves a little bit of algebra at the end it would not get you any marks or 1/2 if you were lucky

LeeLarner