323 prompts matching "Losing solutions by dividing through by cos x"
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Worked Example: Squaring both sides safely when solving a surd equation
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Show All Working: Finding a and b when a plus b root 2 equals a given surd
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Worked Example: Reading the symbol used for a binary operation
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Show All Working: Evaluating a repeated operation such as a*(b*c)
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Worked Example: Testing the even numbers for closure under addition
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Worked Example: Testing a*b against b*a for a given rule
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Show All Working: An operation that is associative but not commutative
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Worked Example: Testing whether star distributes over plus
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Show All Working: Using distributivity to simplify an expression
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Worked Example: Finding the identity element from a rule such as a*b = a + b - 3
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Show All Working: An element with no inverse under a given operation
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Worked Example: The law for multiplying powers of the same base
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Show All Working: Simplifying an expression with letters and indices
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Worked Example: Rewriting a negative index as a fraction
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Show All Working: Simplifying an expression that mixes the index types
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Worked Example: Solving an indicial equation where one side must be factorised first
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Show All Working: A word problem that leads to an indicial equation
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Worked Example: Writing an index statement as a logarithm
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Show All Working: The common logarithm, to base ten
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Worked Example: The law for the logarithm of a quotient
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