755 prompts matching "Checking a symmetric-function answer by solving the equation outright"
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Applying the sum to infinity formula when the ratio lies between minus one and one
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on usin
Solving for x when three terms are in arithmetic progression
I am in SS 1. I attempted an Additional Maths question on finding the value of x given tha
Deriving the geometric series sum formula
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Finding the first term or common difference from the sum formula
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Explaining the difference between a sequence and a series
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Alternating sequences and their pattern
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Distance from a point to the centre of a circle
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Finding an unknown coordinate using the gradient formula
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Factorising the sum and difference of two cubes
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on fact
Simplifying an expression with brackets and indices together
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Worked Example: Why the square root of a non-square whole number is irrational
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Practice: Deciding whether root 16 is rational or irrational
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Explain Back: Where the surds sit on the number line
I have just studied where the surds sit on the number line in my SS1 Further Mathematics c
Worked Example: Adding two surds that simplify to the same root
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Common Mistakes: Expanding the product of two surd brackets
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Learn: Why a surd is never left in the denominator
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Practice: Rationalising a denominator with a whole number multiplying the surd
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Learn: The conjugate of a compound surd expression
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Practice: Rationalising a denominator of the form a plus root b over c minus root d
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