1,045 prompts matching "Why a rational number added to an irrational one stays irrational"
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Learn: What makes an argument valid
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Worked Example: Premises and conclusion
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Quiz: Modus ponens
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Final Revision: An argument written in words and tested for validity
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Learn: Arranging five different books on a shelf
You are my personal SS2 Further Mathematics tutor. Teach me arranging five different books
Worked Example: Arranging r of n objects in a line
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Quiz: Arrangements of a word with no repeated letters
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Explain Back: Arrangements restricted at the first letter
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Spot My Mistake: Arrangements with two particular items adjacent
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Final Revision: Counting the arrangements of people in a queue
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Explain Back: Circular arrangements with two people kept apart
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Spot My Mistake: Arrangements round a table with men and women alternating
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Practice: A selection that must include one particular member
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Learn: Probability as favourable outcomes over total outcomes
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Worked Example: Counting the total outcomes with combinations
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Practice: The probability of drawing one ball of each colour
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Explain Back: Probability with replacement and without replacement
I have just studied probability with replacement and without replacement in my SS2 Further
Learn: Building Pascal's triangle row by row
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Worked Example: Reading the coefficients of an expansion off Pascal's triangle
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Explain Back: The sum of the entries in a row of Pascal's triangle
I have just studied the sum of the entries in a row of Pascal's triangle in my SS2 Further