674 prompts matching "Expanding cos of 3 theta using de Moivre's theorem"
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Recurring decimals as an infinite geometric series
I am in SS 1. I'm going to explain how a recurring decimal, such as 0.777..., can be writt
Sum of a geometric series with a negative common ratio
I am in SS 1. Teach me finding the sum of a geometric series where the common ratio is neg
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
Sum of a series expressed with algebraic terms
I am in SS 1. Teach me finding the sum of the first n terms of a series where each term is
Gradient of a line joining two points
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on find
Equation of a line given gradient and one point
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on find
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
Deciding if three points are collinear
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on deci
Finding the equation of a circle from its centre and radius
I am in SS 1. Teach me finding the equation of a circle in the form (x-a)^2 + (y-b)^2 = r^
Distance from a point to the centre of a circle
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on usin
Equation of a line with a given y-intercept and passing through a point
I am in SS 1. I attempted an Additional Maths question on finding the equation of a straig
Distinguishing gradient sign: positive, negative, zero, undefined
I am in SS 1. Show me a fully worked Cambridge/Additional Maths style solution to a questi
Expanding and simplifying with negative brackets
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on expa
Factorising the difference of two squares
I am in SS 1. Quiz me with 3 short Additional Maths questions on factorising the differenc
Adding two algebraic fractions with different denominators
I am in SS 1. Quiz me with 3 short Additional Maths questions on adding two algebraic frac
Solving a word problem using simultaneous equations
I am in SS 1. I'm going to explain a word problem that must be solved by setting up and so
Common Mistakes: Why a rational number added to an irrational one stays irrational
Act as my SS1 Further Mathematics tutor. Show me the mistake pupils most often make on why
Final Revision: Approximating a surd to three decimal places
Act as my SS1 Further Mathematics tutor at the end of the term. Give me a rapid recap of a
Show All Working: Deciding whether two given surds are equal without a calculator
Act as my Further Mathematics examiner. I am in SS 1. Set me a question on deciding whethe