755 prompts matching "IGCSE Additional Maths Y11: The identity for one minus cos squared — Show All Wo"
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Explain Back: The sum of a geometric progression with a negative common ratio
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Practice: Reversing the sign when multiplying by a negative number
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Explain Back: The solution when the quadratic expression is greater than nought
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Show All Working: Writing a quadratic solution set in interval form
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Final Revision: Writing the inequalities that describe a shaded region
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WAEC Prep: Pi and root 2 as the two best-known irrational numbers
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Show All Working: Deciding whether two given surds are equal without a calculator
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Common Mistakes: Expanding the product of two surd brackets
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Show All Working: A conjugate where the surd term comes first
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Common Mistakes: Rationalising when both terms of the denominator are surds
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WAEC Prep: Equating the rational and the irrational parts of an equation
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Common Mistakes: Subtraction as an example of neither law
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Common Mistakes: Checking an inverse by working the operation both ways
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Common Mistakes: Why the index laws need the bases to match
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WAEC Prep: Evaluating 8 to the power two-thirds
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Show All Working: Simplifying an expression that mixes the index types
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WAEC Prep: Why the logarithm of a negative number does not exist
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Show All Working: The common logarithm, to base ten
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Show All Working: Deciding whether a given number is a term of a sequence
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Common Mistakes: The Fibonacci sequence and the rule behind it
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