755 prompts matching "The probability of exactly r successes in n trials"
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Equation of the perpendicular bisector of a segment
I am in SS 1. Quiz me with 4 short Additional Maths questions on finding the equation of t
Area of a triangle from three coordinates
I am in SS 1. I'm going to explain finding the area of a triangle given the coordinates of
Length of a line segment on a graph
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Coordinate geometry proof: right-angled triangle
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Finding the centre and radius from a circle's equation
I am in SS 1. Quiz me with 3 short Additional Maths questions on finding the centre and ra
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
Quiz me rapid-fire on gradients and equations of lines
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on a ra
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
I am in SS 1. Teach me changing the subject of a formula where the required letter appears
Changing the subject with a square or square root
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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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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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Show All Working: Deciding whether two given surds are equal without a calculator
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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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