363 prompts matching "Checking a Cramer's rule solution by substituting back"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Set-builder notation basics
I am in SS 1. I'm going to explain reading and writing sets using set-builder notation, su
Disjoint sets and what they mean
I am in SS 1. Teach me what it means for two sets to be disjoint, giving an example and dr
Survey word problem using a two-set Venn diagram
I am in SS 1. Teach me a classic survey word problem, such as a group of students where so
Universal set and its role in set problems
I am in SS 1. Teach me what a universal set is and how it affects the answer to complement
Using sets to test simple logical statements
I am in SS 1. Quiz me with 4 short Additional Maths questions on using sets to test whethe
Set operations exam question, multi-part
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on a st
Explaining Venn diagram vocabulary in my own words
I am in SS 1. Teach me the key vocabulary of Venn diagrams and set notation such as univer
Sets applied to a school subject survey
Teach me a realistic Nigerian secondary school context question, such as a survey of SS1 s
Power set of a three-element set
I am in SS 1. I'm going to explain listing the full power set of a three-element set, incl
De Morgan's laws for sets
I am in SS 1. Teach me De Morgan's laws for sets, (A union B)' = A' intersection B' and (A
Finding the nth term of an arithmetic sequence
I am in SS 1. I'm going to explain finding the nth term formula of an arithmetic sequence,
Sum of an arithmetic series given the first and last term
I am in SS 1. Teach me using the formula Sn = n/2 (a + l) to find the sum of an arithmetic
Sum of the first n terms of a geometric series
I am in SS 1. I'm going to explain using the formula Sn = a(r^n - 1)/(r - 1) to find the s
Recognising arithmetic vs geometric sequences
I am in SS 1. Teach me how to tell from a list of numbers whether a sequence is arithmetic
Word problem: arithmetic sequence in a savings context
I am in SS 1. Teach me a real-life word problem modelled by an arithmetic sequence, such a
Word problem: geometric sequence in a growth context
I am in SS 1. Quiz me with 3 short Additional Maths questions on a real-life word problem
Solving for x when three terms are in geometric progression
I am in SS 1. Teach me finding the value of x given that three algebraic expressions in x
Deriving the arithmetic series sum formula
I am in SS 1. Quiz me with 4 short Additional Maths questions on how the formula Sn = n/2
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