755 prompts matching "What the formula gives when the discriminant is nought"
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Explain Back: The solution when the quadratic expression is greater than nought
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IGCSE Additional Maths Y10: Two distinct roots, and what the discriminant shows — Worked Example
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IGCSE Additional Maths Y10: Equal roots, and what the discriminant shows — Quiz Me
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Practice: Finding n when the sum of an arithmetic progression is given
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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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Spot My Mistake: The solution when the quadratic expression is less than nought
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IGCSE Additional Maths Y10: No real roots, and what the discriminant shows — Practice Set
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Final Revision: Identity and inverse together, and what they give the set
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Spot My Mistake: Finding the common ratio when the third and sixth terms are given
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Applying the sum to infinity formula when the ratio lies between minus one and one
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Learn: Why any non-zero number to the power nought is one
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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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Rationalising the denominator when it's a surd minus a surd
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Disjoint sets and what they mean
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Final Revision: Deciding whether a given rule really is a binary operation
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Learn: What it means for one operation to distribute over another
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Spot My Mistake: Finding the inverse of a given element
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Show All Working: Deciding whether a given number is a term of a sequence
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