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1.2.12 Use and manipulate surds

Card 1 of 21

Why is 9\sqrt{9}9​ not a surd?

A

The product of conjugates satisfies (a+b)(a−b)=a2−b\boxed{(a+\sqrt{b})(a-\sqrt{b})=a^2-b}(a+b​)(a−b​)=a2−b​.

B

424\sqrt{2}42​

C

32\frac{3}{2}23​

D

It simplifies to the rational number 333.

Card 1 of 21

1.2.12 Use and manipulate surds Flashcards

  1. A Level
  2. /Maths
  3. /1.2.12 Use and manipulate surds

21 flashcards on OCR (MEI) A Level Maths 1.2.12 Use and manipulate surds: the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.

Flashcards