755 prompts matching "Structured question: combination problem with 'at least' condition"
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Show All Working: Deciding whether a given number is a term of a sequence
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Common Mistakes: The Fibonacci sequence and the rule behind it
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Worked Example: Finding the common difference of an arithmetic progression
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Practice: Finding the twentieth term of a given arithmetic progression
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Explain Back: Finding the first term from two given terms
I have just studied finding the first term from two given terms in my SS1 Further Mathemat
Show All Working: Deciding whether a number belongs to a given arithmetic progression
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Practice: Finding n when the sum of an arithmetic progression is given
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Explain Back: Finding the first term from the sum and the common difference
I have just studied finding the first term from the sum and the common difference in my SS
Show All Working: The sum of the terms lying between two given positions
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Common Mistakes: Proving the sum formula by pairing the terms
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Practice: Finding the eighth term of a given geometric progression
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Explain Back: Finding the first term from two given terms of a geometric progression
I have just studied finding the first term from two given terms of a geometric progression
Common Mistakes: Inserting a geometric mean between two numbers
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Worked Example: Which form of the sum formula to use when r is less than one
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Practice: Finding n when the sum of a geometric progression is given
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Show All Working: The sum to infinity of a geometric progression, and when it exists
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Worked Example: Adding or subtracting the same number on both sides
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Show All Working: Writing the solution of an inequality as a set
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Common Mistakes: A double inequality such as 2 less than x less than 7
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Explain Back: Solving an inequality such as modulus of 2x minus 1 less than 5
I have just studied solving an inequality such as modulus of 2x minus 1 less than 5 in my