1,067 prompts matching "Approximating a surd to three decimal places"
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Learn: The union of two sets written in set-builder notation
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Worked Example: The intersection of two overlapping sets
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Quiz: The complement of a set within a stated universal set
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Practice: The difference of two sets, A minus B
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Explain Back: The symmetric difference of two sets
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Spot My Mistake: De Morgan's law that the complement of a union is the intersection of the complements
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Learn: Reading a binary operation defined by a formula such as a*b = a + b - ab
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Worked Example: Testing whether a binary operation is closed on a given set
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Quiz: Testing a binary operation for commutativity
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Practice: Testing a binary operation for associativity
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Explain Back: Finding the identity element of a binary operation
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Spot My Mistake: Finding the inverse of an element under a binary operation
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Worked Example: Simplifying an expression carrying both a negative and a fractional index
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Practice: Converting between index form and logarithm form
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Explain Back: The laws of logarithms for a product and for a quotient
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Spot My Mistake: The power law of logarithms
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Learn: The sum and the product of the roots read from the coefficients
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Quiz: Forming a quadratic equation whose roots are given
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Explain Back: The range of values of k for which the roots are real
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Spot My Mistake: Forming a new equation whose roots are the reciprocals of the original
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