658 prompts matching "Explain why a complex number times its conjugate is real"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Spot My Mistake: Why root 8 and root 2 turn out to be similar
Act as my SS1 Further Mathematics tutor. Work a question on why root 8 and root 2 turn out
Spot My Mistake: Simplifying the denominator once the conjugate has been used
Act as my SS1 Further Mathematics tutor. Work a question on simplifying the denominator on
Final Revision: Checking a conjugate answer by multiplying back
Act as my SS1 Further Mathematics tutor at the end of the term. Give me a rapid recap of c
Spot My Mistake: The logarithm of the base itself
Act as my SS1 Further Mathematics tutor. Work a question on the logarithm of the base itse
Final Revision: Inserting an arithmetic mean between two numbers
Act as my SS1 Further Mathematics tutor at the end of the term. Give me a rapid recap of i
IGCSE Additional Maths Y10: Sketching a quadratic from its vertex form — Spot My Mistake
I am a Year 10 pupil taking Cambridge IGCSE Additional Mathematics. Work a question on ske
IGCSE Additional Maths Y10: Reading the number of solutions off a pair of graphs — Spot My Mistake
I am a Year 10 pupil taking Cambridge IGCSE Additional Mathematics. Work a question on rea
Comparing the size of two large index numbers
I am in SS 1. Quiz me with 5 short Additional Maths questions on comparing the size of two
Union and intersection of two number sets
I am in SS 1. I'm going to explain finding the union and intersection of two given sets of
Word problem: total distance from a bouncing ball
I am in SS 1. Quiz me with 3 short Additional Maths questions on a classic word problem wh
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
WAEC Prep: Pi and root 2 as the two best-known irrational numbers
Act as my SS 1 Further Mathematics teacher setting an examination question. Give me a ques
WAEC Prep: Showing the solution of a linear inequality on a number line
Act as my SS 1 Further Mathematics teacher setting an examination question. Give me a ques
Verifying an index law with numbers
I am in SS 1. I'm going to explain verifying that a^m divided by a^n equals a^(m-n) using
Full past-question style index problem, timed
I am in SS 1. Teach me a complete WAEC/Additional Maths style index question exactly as it
What makes a number a surd
I am in SS 1. Show me a fully worked Cambridge/Additional Maths style solution to a questi
Rationalising a denominator with a single surd
I am in SS 1. Quiz me with 4 short Additional Maths questions on rationalising a denominat
Rationalising a denominator with a surd and integer
I am in SS 1. I'm going to explain rationalising a denominator such as 6 divided by (2 roo
Surds arising from Pythagoras' theorem
I am in SS 1. Quiz me with 4 short Additional Maths questions on a Pythagoras' theorem que
Common surd mistakes to watch out for
Quiz me with 4 short Additional Maths questions on the most common mistakes SS1 Further Ma