273 prompts matching "Dividing by a purely imaginary number"
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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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Full past-question style index problem, timed
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Multiplying two surds together
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Squaring a surd expression
I am in SS 1. Teach me squaring a binomial surd expression, such as (2 + root 5)^2, showin
Rationalising a denominator with a single surd
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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
Rationalising using the conjugate
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Rationalising a more complex conjugate denominator
I am in SS 1. I attempted an Additional Maths question on rationalising a fraction with a
Solving a simple surd equation
I am in SS 1. Teach me solving a surd equation, such as solving root(x + 4) = 3, and check
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
Simplifying a fraction with a surd numerator
I am in SS 1. Teach me simplifying a fraction where the numerator contains a surd, such as
Surds in the quadratic formula
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Rationalising and then simplifying fully
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Surd word problem: diagonal of a rectangle
I am in SS 1. Teach me a word problem asking for the exact length of the diagonal of a rec
Show all working: full surd simplification exam question
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Rationalising the denominator when it's a surd minus a surd
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Working with cube roots as a type of surd
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Explaining why we rationalise denominators
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