998 prompts matching "Practice: Finding an unknown force from a closed polygon"
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Common Mistakes: Deciding between tautology, contradiction and contingency
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Worked Example: Premises and conclusion
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WAEC Prep: Testing an argument for validity by truth table
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Common Mistakes: The fallacy of denying the antecedent
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Final Revision: An argument written in words and tested for validity
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Worked Example: Arranging r of n objects in a line
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Explain Back: Arrangements restricted at the first letter
I have just studied arrangements restricted at the first letter in my SS2 Further Mathemat
Spot My Mistake: Arrangements with two particular items adjacent
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WAEC Prep: Arrangements with two particular items not adjacent
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Show All Working: Arrangements of boys and girls alternately
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Common Mistakes: Arranging objects when some must stay in a fixed order
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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
I have just studied circular arrangements with two people kept apart in my SS2 Further Mat
Spot My Mistake: Arrangements round a table with men and women alternating
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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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Common Mistakes: Comparing a line arrangement with a circular one
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Show All Working: Selecting a committee with the chairman named separately
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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
Common Mistakes: A probability found by counting arrangements
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