823 prompts matching "Showing a set is not closed by a single counter-example"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Solve x^2 + x - 12 = 0 by factorisation
Act as my SS2 Further Maths tutor. Show me step by step how to solve the quadratic equatio
Teach me solving quadratic equations by factorisation
Act as my SS2 Further Maths tutor. Teach me the full method for solving a quadratic equati
Quiz me: solving quadratics by factorisation
Act as my SS2 Further Maths tutor. Quiz me with five quadratic equations to solve by facto
Quiz me on polynomial division by a quadratic divisor
Act as my SS2 Further Maths tutor. Quiz me with four polynomial division by a quadratic di
Quiz me on the finding the remainder when a cubic is divided by a linear factor
Act as my SS2 Further Mathematics tutor and quiz me on finding the remainder when a cubic
Teach me dividing complex numbers by rationalising with the conjugate
You are my SS2 Further Mathematics tutor. Teach me dividing complex numbers by rationalisi
Spot my mistake multiplying a two by two matrix by a two by one matrix
Act as my SS2 Further Mathematics tutor. Work a question on multiplying a two by two matri
Worked example: write the converse, inverse and contrapositive of 'if a number is even, then it is divisible by 2'
Act as my SS2 Further Maths tutor. Show me a full worked example for this propositional lo
Timed practice: five quadratic equations by factorisation
I am in SS 2. Give me five quadratic equations of increasing difficulty to solve by factor
Explain back: completing the square when the coefficient of x squared is not one
I have just studied completing the square when the coefficient of x squared is not one in
Final Revision: A word problem solved by factorising a quadratic
Act as my SS2 Further Mathematics tutor at the end of the term. Give me a rapid recap of a
Practice: Showing that x plus 3 is a factor of a given polynomial
Act as my SS2 Further Mathematics tutor. Give me five practice questions on showing that x
Quiz: Factorising a polynomial by grouping terms
Act as my SS2 Further Mathematics tutor and quiz me on factorising a polynomial by groupin
Final Revision: Checking a factorisation by expanding it again
Act as my SS2 Further Mathematics tutor at the end of the term. Give me a rapid recap of c
Explain Back: Showing two statements equivalent by truth table
I have just studied showing two statements equivalent by truth table in my SS2 Further Mat
Practice: Showing that a statement is a tautology
Act as my SS2 Further Mathematics tutor. Give me five practice questions on showing that a
Explain Back: Showing that a statement is a contradiction
I have just studied showing that a statement is a contradiction in my SS2 Further Mathemat
IGCSE Additional Maths Y11: Where the tangent graph is undefined — Practice Set
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Set me a practice set
IGCSE Additional Maths Y11: Proving an identity by turning everything into sine and cosine — Practice Set
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Set me a practice set
IGCSE Additional Maths Y11: Finding stationary points by setting the derivative to nought — Worked Example
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Take me through one co