1,045 prompts matching "Learn: The meaning of n choose r, and how to evaluate it"
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Worked Example: How many roots a cubic equation has
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Spot My Mistake: Finding the remaining roots once one is known
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WAEC Prep: Why a conditional and its contrapositive are equivalent
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Explain Back: Showing two statements equivalent by truth table
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WAEC Prep: The double negation law
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Explain Back: Showing that a statement is a contradiction
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Worked Example: Premises and conclusion
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Worked Example: Arranging r of n objects in a line
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Spot My Mistake: Arrangements round a table with men and women alternating
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Quiz: Selecting from two groups at the same time
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Explain Back: Probability with replacement and without replacement
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Spot My Mistake: The probability that a committee contains a given person
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Spot My Mistake: Expanding a bracket with a minus sign inside it
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WAEC Prep: Expanding a bracket with a coefficient on x
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Quiz: Finding the term in x cubed
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Spot My Mistake: The middle term when n is even
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WAEC Prep: The two middle terms when n is odd
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IGCSE Additional Maths Y11: Converting radians into degrees — Quiz Me
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IGCSE Additional Maths Y11: The arc length formula, s equals r theta — Practice Set
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IGCSE Additional Maths Y11: Finding the angle at the centre from a given arc length — Spot My Mistake
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