861 prompts matching "Explain why a complex number times its conjugate is real"
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Show All Working: The fallacy of affirming the consequent
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Learn: Arranging five different books on a shelf
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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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Show All Working: Arrangements of boys and girls alternately
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Learn: What makes a permutation cyclic
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Show All Working: A circular arrangement with one fixed seat such as the head
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Learn: Selecting a team of five from a squad
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Worked Example: Selections in which the order does not matter
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Show All Working: Selecting a committee with the chairman named separately
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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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Quiz: The probability of drawing two red balls
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Show All Working: The complement rule used in a counting problem
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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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Quiz: Expanding a bracket to the power four using Pascal's triangle
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Show All Working: The binomial coefficients written as n choose r
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Learn: The formula for the general term of an expansion
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Worked Example: Finding the fifth term of an expansion
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