622 prompts matching "checking each line of a trigonometric identity proof"
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Common Mistakes: Expanding the product of two surd brackets
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Quiz: Rationalising a denominator of the form one over root 3
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Quiz: Rationalising a denominator of the form one over 2 plus root 3
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Practice: Rationalising a denominator of the form a plus root b over c minus root d
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Explain Back: The difference of two squares applied to surd conjugates
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Quiz: Checking a surd equation for extraneous roots
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Practice: Solving an equation with a surd on each side
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Spot My Mistake: A binary operation defined on a set of three elements
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Spot My Mistake: Reading closure off an operation table
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Common Mistakes: Closure on a set of three elements under a stated rule
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Quiz: Reading commutativity off a symmetrical operation table
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Common Mistakes: Subtraction as an example of neither law
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Spot My Mistake: Checking distributivity from two operation tables
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Common Mistakes: Distributivity on a set of three elements
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Quiz: Finding the identity element from an operation table
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Practice: Why an identity element must work from both sides
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Spot My Mistake: Finding the inverse of a given element
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Quiz: The law for dividing powers of the same base
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