755 prompts matching "Finding the unit vector in the direction of a given vector"
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Sum of the first n odd numbers
I am in SS 1. Quiz me with 4 short Additional Maths questions on proving and using the fac
Length of a line segment on a graph
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Coordinate geometry proof: right-angled triangle
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Coordinate geometry proof: isosceles triangle
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Gradient as a rate of change interpretation
I am in SS 1. I'm going to explain interpreting the gradient of a straight-line graph as a
Expanding a product of two brackets
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Expanding a product of three brackets
I am in SS 1. I'm going to explain expanding a product of three linear brackets, such as (
Changing the subject when the variable appears twice
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Changing the subject with a square or square root
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Factorising a quadratic with a coefficient in front of x squared
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Explaining the difference between an expression and an equation
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Worked Example: Why the square root of a non-square whole number is irrational
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Spot My Mistake: The decimal expansion of an irrational number, and why it never repeats
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Show All Working: Classifying a mixed list of numbers as rational or irrational
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WAEC Prep: Ordering a list of surds by size
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Common Mistakes: Expressing root 50 as a multiple of root 2
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Learn: Why a surd is never left in the denominator
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Final Revision: Expressing a rationalised answer in the form a root b over c
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Learn: The conjugate of a compound surd expression
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Show All Working: A conjugate where the surd term comes first
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