complex q (1 Viewer)

[=)(=]

 

[Drongoski]

Question incomplete? Here's a counterexample, with w & z satisfying the specifications. If |w| = 2|z|, then you can get the result.

Or have I made a mistake somewhere??

 

[=)(=]

Thats the full question i think they made a mistake or might have left something out

 

[jimmysmith560]

is 2iii) root 10?
how to do the rest

It seems like you might have made a mistake somewhere, since it appears that the correct answer is according to the following working:

When , continuing the ray to the circle gives .



So

Would the following working help with Question 8 (a) part (ii)?

 

[jimmysmith560]

yeah that makes so much sense thanks.

how did u continue the ray to the circle to get those points tho?

No worries. I am not entirely sure about how this was done sadly, but I am hoping that someone else would be able to clarify this bit.

 

[jimmysmith560]

is there a particular place where i can find solutions to questions online?
like by seaching them up and getting those worked solutions

None that I am aware of. What usually happens is that some questions may be included in more than one source, for example, more than one trial paper. In your case, the question that hogzillaAnson provided further clarification for was also included in the 2020 Hurlstone Agricultural High School Mathematics Extension 2 trial exam, which you can access using thsconline.