755 prompts matching "Learn: An area lying below the x-axis, and its sign"
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Multi-part algebraic manipulation exam question
I am in SS 1. I attempted an Additional Maths question on a Cambridge/Additional Maths sty
Common sign errors in algebraic manipulation
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Practice: Deciding whether root 16 is rational or irrational
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Common Mistakes: Why a rational number added to an irrational one stays irrational
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Learn: What makes two surds similar
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Quiz: Reducing two surds to the same root in order to compare them
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Practice: Collecting similar surds in an expression
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Show All Working: Deciding whether two given surds are equal without a calculator
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Final Revision: Surds that cannot be combined at all
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Learn: Simplifying root 72 into its simplest form
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Quiz: Rationalising a denominator of the form one over root 3
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Show All Working: Checking a rationalised answer by decimal approximation
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Quiz: Rationalising a denominator of the form one over 2 plus root 3
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Practice: Rationalising a denominator of the form a plus root b over c minus root d
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Spot My Mistake: Simplifying the denominator once the conjugate has been used
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Show All Working: A conjugate where the surd term comes first
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Quiz: Checking a surd equation for extraneous roots
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Practice: Solving an equation with a surd on each side
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