755 prompts matching "IGCSE Additional Maths Y11: Checking an answer for reasonableness — Show All Wor"
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Explain Back: What an inverse element is
I have just studied what an inverse element is in my SS1 Further Mathematics class. Let me
Final Revision: Identity and inverse together, and what they give the set
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Explain Back: The law for a product raised to a power
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Explain Back: An indicial equation with the unknown in the exponent on both sides
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Common Mistakes: An indicial equation solved by substitution
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Explain Back: The logarithm of one, in any base
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Final Revision: The characteristic and the mantissa of a logarithm
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Final Revision: Using change of base to prove a stated relation
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Common Mistakes: The Fibonacci sequence and the rule behind it
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Final Revision: Describing a sequence in words and then in symbols
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Common Mistakes: An arithmetic progression with a negative common difference
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Final Revision: Inserting an arithmetic mean between two numbers
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Explain Back: Finding the first term from the sum and the common difference
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Final Revision: A savings problem modelled by an arithmetic progression
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Common Mistakes: Inserting a geometric mean between two numbers
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Common Mistakes: A bouncing ball problem, and the total distance travelled
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Common Mistakes: A double inequality such as 2 less than x less than 7
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Explain Back: The solution when the quadratic expression is greater than nought
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Common Mistakes: A quadratic inequality that has to be rearranged first
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Explain Back: Solving an inequality such as modulus of 2x minus 1 less than 5
I have just studied solving an inequality such as modulus of 2x minus 1 less than 5 in my