what do you think about Spesh 2?

[sophie.tran999]

anyone finish all de ques?

[AleksIlia]

Was alright, couldn't manage to get the area of the intersection of the two circles and also missed the last bit of last question. How about you guys?

[ttn]

Couldn't verify the differential equation and couldn't find the az thing.
Think I got the very last qn wrong as well, got like 240 something lmao.

[kenny_]

couldn't get a, the last golfer bit and for last question i got like 0.4, pretty sure im wrong

[ttn]

Was alright, couldn't manage to get the area of the intersection of the two circles and also missed the last bit of last question. How about you guys?

I got pi/2 -1 for that.
I did the integral top graph minus bottom, except negatived the root for the top circle. Does that seem right?

[paulsterio]

I got 240-something as well, did you find the area under the curve - x(10)? haha, that's what I did, I think it's wrong

Anyway, multiple choice was alright, got 22/22, note that iTute's answer to question 22 is wrong, it's actually E

Extended response, I stuffed up the z=az(bar) thing, and the last part of the last question, which all in all would have cost me 4 marks, but hopefully I manage to salvage 1 for working, so I guess 77/80 from just discussing answers...etc. Harder than last year's exam!

I got pi/2 -1 for that.
I did the integral top graph minus bottom, except negatived the root for the top circle. Does that seem right?

I used circle geometry, area of a segment x 2

[Asx4Life]

I got 1.4 something for circle I think.
I found the area between the bottom half of the circle that was translated 1 unit upwards and the line y=x then times area by 2.

[ttn]

I got 240-something as well, did you find the area under the curve - x(10)? haha, that's what I did, I think it's wrong

Anyway, multiple choice was alright, got 22/22, note that iTute's answer to question 22 is wrong, it's actually E

Extended response, I stuffed up the z=az(bar) thing, and the last part of the last question, which all in all would have cost me 4 marks, but hopefully I manage to salvage 1 for working, so I guess 77/80 from just discussing answers...etc. Harder than last year's exam!

I got pi/2 -1 for that.
I did the integral top graph minus bottom, except negatived the root for the top circle. Does that seem right?

I used circle geometry, area of a segment x 2

What did you end up getting for the answer?

[paulsterio]

pi/2 - 1

[ttn]

awesome, how did you do the complex number mc? 1/zbar

[AleksIlia]

1/zbar is equal to z/|z|^2 i think so its a dilation

[ttn]

Itute says the distance is 177, I got 35?

[golden]

awesome, how did you do the complex number mc? 1/zbar

I'm not sure if this is right, but what I did was:

1/(x-yi).
(x+yi)/(x^2+y^2).
X^2 + Y^2 is positive.
Hence it's just a similar thing but brought back a bit.

[ttn]

awesome, how did you do the complex number mc? 1/zbar

I'm not sure if this is right, but what I did was:

1/(x-yi).
(x+yi)/(x^2+y^2).
X^2 + Y^2 is positive.
Hence it's just a similar thing but brought back a bit.

lol I think I guessed right then.
How come I can't edit my posts right now? The modify option is not appearing.

[paulsterio]

Itute says the distance is 177, I got 35?

I did too, the exact value was 25root(2) = 35