755 prompts matching "IGCSE Additional Maths Y11: The ratios of 0, 90, 180 and 270 degrees — Show All"
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Final Revision: Approximating a surd to three decimal places
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Learn: What makes two surds similar
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Final Revision: Surds that cannot be combined at all
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Learn: Simplifying root 72 into its simplest form
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Show All Working: Simplifying a surd expression that contains brackets
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Final Revision: Simplifying a fraction whose numerator and denominator are both surds
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Final Revision: Checking a conjugate answer by multiplying back
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Learn: Solving an equation with a single square root term
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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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Common Mistakes: A surd equation that has no real solution
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Final Revision: A word problem that leads to an equation in surd form
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Show All Working: Showing a set is not closed by a single counter-example
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Show All Working: Using distributivity to simplify an expression
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Learn: What an identity element is
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Show All Working: Simplifying an expression with letters and indices
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Common Mistakes: Writing a root as a fractional index before simplifying
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Show All Working: A word problem that leads to an indicial equation
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Common Mistakes: An indicial equation solved by substitution
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Final Revision: Checking an indicial solution by substitution
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Common Mistakes: Reading a logarithm from a table
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