eMaths.ie
  • Home
    • Projectmaths.ie
    • Geogebra
    • Exam Layout
    • Revision Notes
    • T&T Solutions
    • Log Tables
    • Contact
    • Calculators
    • Files
    • Applied Maths
  • Paper 1
    • S3 Number >
      • Number Systems
      • Complex Numbers
      • Sequences & Series
      • Financial Maths
      • Arithmetic and Money
    • S4 Algebra >
      • Algebra 1
      • Algebra 2
      • Algebra 3
      • Algebra Overview
      • Binomial Theorem
      • Logs & Indices
    • S5 Functions & Calculus >
      • Functions
      • Graphing Polynomials
      • Differentiation
      • Integration
    • Paper 1 - Must Learn
  • Paper 2
    • S1 Statistics & Probability >
      • Probability
      • Statistics
    • S2 Geometry & Trigonometry >
      • The Line & Circle
      • Trigonometry 1
      • Trigonometry 2
      • Trigonometry Overview
      • Geometry
    • S3 Number (Area, Volume) >
      • Area and Volume
    • Paper 2 - Must Learn
  • Exam Papers
    • Printable Exam Questions
    • Exam Question Solutions & Marks
    • Molloy Maths LCHL Exam Videos
  • LC '22 Blog

Answer to question on HW

5/20/2013

6 Comments

 
Sir, In example 1 of complex number rectangular form it says find a and b. The answer is down as " 3 + i " does that mean a is 3 and b is 1?
The answer is yes.
6 Comments
regina
5/20/2013 12:06:27 pm

Sir, I got half of my answers wrong as I put in the "i" after the number. Instead of the mark I should have gotten it was extremely low even though I had put the correct answers in. I took a screen shot for proof to show you tomorrow. Thank you Sir.

Reply
Mr R
5/20/2013 03:28:37 pm

I believe you.

Reply
Aisling
5/20/2013 01:13:19 pm

Sorry sir but if you have a chance either tomorrow in class could you please explain question 20 on complex numbers http://www.mathsireland.com/LCHGeneralNotes/Complex_Numbers/2_9_DeMoivre_Find_Powers_Complex_Numbers/Q_2_9_DeMoivre_Find_Powers_Complex_Numbers.html
The pink background thing? I don't know where the root 2 or pie over 4 came from sorry I can't find the symbols on this

Reply
Mr R
5/20/2013 03:29:39 pm

I have posted an explanation to this now - I hope its useful?

Reply
Aisling
5/20/2013 01:39:31 pm

Sorry to be a plaque but I did terrible in that test thing and am wondering if I'm doing the questions wrong or if I'm not writing it correct but I didn't use i? The retest would be good now :L

Reply
Mr R
5/20/2013 03:31:03 pm

Not to worry - we'll look at this tomorrow. Keep up the hard work.

Reply



Leave a Reply.

    Picture

    Author

    Mr Roche

    Archives

    August 2014
    June 2014
    May 2014
    April 2014
    March 2014
    February 2014
    January 2014
    December 2013
    November 2013
    October 2013
    September 2013
    August 2013
    July 2013
    June 2013
    May 2013
    April 2013
    March 2013
    February 2013
    January 2013
    December 2012
    November 2012

    RSS Feed

Picture




​Copyright material from JC Fallon used with permission 




​Copyright © 2021