363 prompts matching "Checking a Cramer's rule solution by substituting back"
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Fractional indices with numerator above 1
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Solving index equations with matching bases
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Index equations reducing to a quadratic
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Simplifying a fraction of two bracketed index terms
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Evaluating a negative fractional index
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Index laws with an unknown letter base
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Verifying an index law with numbers
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Simplifying indices before adding like terms
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Multi-part index exam question with a real context
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What makes a number a surd
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Multiplying two surds together
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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
Solving a surd equation with terms on both sides
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Estimating the value of a surd
I am in SS 1. I'm going to explain estimating the approximate value of a surd such as root
Distinguishing rational and irrational numbers
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Rationalising the denominator when it's a surd minus a surd
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Solving a surd equation that gives an extraneous root
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Explaining why we rationalise denominators
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Surds and indices together in one question
I am in SS 1. Teach me a question that requires converting a surd to index form, simplifyi
Rationalising a denominator with three surd terms
I am in SS 1. I'm going to explain rationalising a more unusual denominator involving more