1,045 prompts matching "Why a rational number added to an irrational one stays irrational"
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Show All Working: Choosing between factorising and the formula
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Common Mistakes: A sign error in the formula, and how to catch it
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WAEC Prep: Forming an equation whose roots are alpha plus one and beta plus one
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Practice: The condition for the line to be a tangent
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WAEC Prep: Expressions that are not polynomials, and why not
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Common Mistakes: Factorising fully, and knowing when to stop
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Show All Working: Translating an English sentence into logical symbols
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Common Mistakes: Translating a symbolic statement back into English
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WAEC Prep: Why a conditional and its contrapositive are equivalent
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Show All Working: Why a conditional and its converse are not equivalent
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Common Mistakes: Deciding between tautology, contradiction and contingency
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Practice: Circular arrangements with two people together
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WAEC Prep: Beads on a necklace, and why the count halves
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Show All Working: A circular arrangement with one fixed seat such as the head
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IGCSE Additional Maths Y11: Converting radians into degrees — Quiz Me
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Quiz me with five shor
IGCSE Additional Maths Y11: Simplifying an expression down to a single ratio — Quiz Me
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Quiz me with five shor
IGCSE Additional Maths Y11: Proving an identity by turning everything into sine and cosine — Practice Set
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Set me a practice set
IGCSE Additional Maths Y11: Combinations and permutations combined in one problem — Show All Working
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Set me a question on c
IGCSE Additional Maths Y11: Expanding 2 minus 3x, all to the power five — Quiz Me
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Quiz me with five shor
IGCSE Additional Maths Y11: The components of a displacement vector — Worked Example
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Take me through one co