755 prompts matching "The middle term when n is even"
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Spot My Mistake: Finding the common ratio when the third and sixth terms are given
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Show All Working: Deciding whether a given number is a term of a sequence
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Spot My Mistake: Finding the common difference from two given terms
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Practice: Finding n when the sum of an arithmetic progression is given
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Common Mistakes: Proving the sum formula by pairing the terms
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Worked Example: Which form of the sum formula to use when r is less than one
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Practice: Finding n when the sum of a geometric progression is given
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Show All Working: The sum to infinity of a geometric progression, and when it exists
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Explain Back: The solution when the quadratic expression is greater than nought
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Spot My Mistake: The solution when the quadratic expression is less than nought
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IGCSE Additional Maths Y10: Completing the square when the coefficient of x squared is not one — Worked Example
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IGCSE Additional Maths Y10: Expressing the root of an algebraic term as an index — Spot My Mistake
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IGCSE Additional Maths Y10: When an exact surd answer is required rather than a decimal — Exam Technique
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IGCSE Additional Maths Y10: The remainder when the divisor is a quadratic — Show All Working
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Rationalising the denominator when it's a surd minus a surd
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IGCSE Additional Maths Y10: The solution set when the two roots are equal — Spot My Mistake
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Finding the common difference from given terms
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Sum of an arithmetic series given the first and last term
I am in SS 1. Teach me using the formula Sn = n/2 (a + l) to find the sum of an arithmetic
Finding the common ratio from given terms
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