tosophiechen
Jul 8, 2017

<<PLS READ THIS FIRST >> Guide and Rules 'Challenge Wanted'

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Edited: Jul 10, 2017

How to ask for help on Mathematics via forum?

Specific questions OUTSIDE of Harry's Education Center's homework

The questions presented must include the level, source (i.e. school or textbook name etc.) and year + have the question either typed up or attach as an image.

 

For Example: If your question was taken from James Ruse's 2011 Term 2 maths Ext. 1 year 12 exam paper question 7 (a) sub-question (iii)

 

Thread Title: Ex1 - JamesRuse - Year 12 Term 2 - 2011 - Q7 (a)/(iii)

 

If the question was taken from a hardcopy, simply take a picture on the specific question area and upload on forum.

 

If the question was taken from a digital copy, please follow the listed steps below to upload question as a image in the thread.

Step 1: Press <Fn> + <Insert PrtScr> buttons together to get a screenshot of the question.

Step 2: Select and open Paint program

Step 3: Press <Ctrl> + <V> buttons to paste the screen shot of the question

Step 4: Select the question area, then press <crop> to cut off the remainder

Step 5: Save the file as png or jpg image file

Step 6: Click on the camera icon below to upload the question as a image file.

How the question posted will be answered?

It is in our best interest that our replies will help you to learn effectively. Our tutors will review the question posted and provide necessary hints so that you can at least try to complete the remainder by yourself. Or if not, please at least post with your attempt before asking again for additional help.

 

How do I get to know if the question has been answered?

You will get a notification once your thread has been answered. Please give us a heart if you find the hint provided is helpful. :)

 

GENERAL RULES:

  • Be Descriptive and DO NOT use stupid topic names

  • No spam/advertising/self-promote in the forums

  • No 'offensive' post, links or images

  • Do not PM members asking for help

  • Remain respectful to other members at all times

Please be aware that this is a new initiative from Harry's Education Center to offer additional online help outside of our weekly tutorial classes. Please be patient and report any bugs (under Technical Support category) or give us any feedback for improvement. We hope you enjoy and find it useful.

 

New Posts
  • elenacove2017
    Jul 29, 2017

    Hi, I thought I would share this. Found this challenging at first until I studied polynomials further for yr 10 course. Found this question in one of the James Ruse year 10 papers on the net. Part i) was a little confusing at first, I didn't see it in any text books. Found it finally in book 2 of the HEC Yr 10 Polynomials where it mentions under Polynomial Division, that the degree of the Remainder is always less than the degree of the Divisor. In this case the Divisor is quadratic and of degree 2. So the Remainder is linear of degree 1. Answer: The remainder always has a lower degree than the divisor. Since the divisor is quadratic R(x)=ax+b which is a general form of a linear expression (ie of degree 1). Part ii) Simply use the remainder theorem and sub. in 4 for P(x) and R(x). Then find 4a+b as common to both. Took a pic of the solution. Part iii) Use part ii) relationship for a and b variables, apply Remainder Theorem P(-1)=5 since divisor is (x-(-1)) or (x+1) to get answer. See pic of solution.
  • tosophiechen
    Jun 25, 2017

    This question was presented by Johnny from our Ext. 2 maths class (2017) via wechat! : ) Use the method of slicing to find the volume of the solid obtained by rotating the region.

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