739 prompts matching "Learn: What makes an argument valid"
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Rationalising a denominator with a surd and integer
I am in SS 1. I'm going to explain rationalising a denominator such as 6 divided by (2 roo
Surd answers in area and perimeter questions
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Distinguishing rational and irrational numbers
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Rationalising and then simplifying fully
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Surd word problem: diagonal of a rectangle
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Solving a surd equation that gives an extraneous root
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Surds and indices together in one question
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Surds in a coordinate geometry distance calculation
I am in SS 1. Teach me a coordinate geometry question where applying the distance formula
Reading and writing set notation
I am in SS 1. Teach me reading and writing basic set notation, such as element-of, subset-
Union and intersection of two number sets
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Finite and infinite sets
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Logical reasoning with 'and' versus 'or' in sets
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Set theory laws: commutative and associative
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De Morgan's laws for sets
I am in SS 1. Teach me De Morgan's laws for sets, (A union B)' = A' intersection B' and (A
Finding the nth term of an arithmetic sequence
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Sum of the first n terms of an arithmetic series
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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 number of terms in an arithmetic series
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Applying the sum to infinity formula when the ratio lies between minus one and one
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Arithmetic mean between two numbers
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