Question 6 of today's exam paper. (2 Viewers)

[icesta1]

Question 6 (iv) The area and graph question.

What was the answer to this?

 

[Lis020393]

The way I did it was to add the Areas A, B and C
The answer I got was 8 units squared
But I don't know if it's correct, wait for someone to confirm or reject the answer

 

[amour]

The way I did it was to add the Areas A, B and C
The answer I got was 8 units squared
But I don't know if it's correct, wait for someone to confirm or reject the answer

i did this,

 

[present_value]

its easy

 

[present_value]

2 marks for integrating 2cos(x), easy as piss.

 

[_deloso]

yup answer was 8

 

[present_value]

yup answer was 8

No it wasn't

This guy did shit today, you are best not to lsiten to him!

 

[icesta1]

yeh i also got 8. But I remember doing a similar queston in the past hsc paper.

If anyone has the 1999 Past HSC paper look at question 5(c) and its answer. Its very similar however when the area is below the x-axis they minused it rather than adding it. Very odd. Can anyone confirm this?

 

[Swazz]

yeh i also got 8. But I remember doing a similar queston in the past hsc paper.

If anyone has the 1999 Past HSC paper look at question 5(c) and its answer. Its very similar however when the area is below the x-axis they minused it rather than adding it. Very odd. Can anyone confirm this?

That question had a definite integral (didn't ask for area in question). Area takes absolute value. Duh.
Answer was 8.

 

[Awkward_Ninja]

It was 8.
And i screwed up the last bit.
I misread the question and put 8 units.
I checked again later, and realised the part below the x-axis cancelled out the top part, and would've been |-2|, or 2.

This present_value guy is just looking for trouble.

 

[barbernator]

It was 8.
And i screwed up the last bit.
I misread the question and put 8 units.
I checked again later, and realised the part below the x-axis cancelled out the top part, and would've been |-2|, or 2.

This present_value guy is just looking for trouble.

The answer is -2, not 2

 

[Sammydubbs]

All I did was get the area between 0 and pi/2 and tines that area by 4 I got 8 as well

 

[trang8]

anyone know solution to 6cv ???
i got 6 but others say -2
PS: if it's -2 then it's an integration question, and this is usually worth 2 marks not 1
so i think that 6 is right. What do you think?

 

[Jaymay]

definitely minus two, it didn't as for area, it simply asked for the integral alone, =-2

 

[someth1ng]

anyone know solution to 6cv ???
i got 6 but others say -2
PS: if it's -2 then it's an integration question, and this is usually worth 2 marks not 1
so i think that 6 is right. What do you think?

Wrong. It's -2, 6 is the area but it's not asking for area - it's asking for the integral with limits so it's integral=-2-2+2=-2

 

[nephh22]

No it wasn't

This guy did shit today, you are best not to lsiten to him!

lol r u a troll or something... every post of urs i see is NEGATIVE! :l

 

[katoji]

NOOO! Are you serious? Damn it. I found out the area

 

[jamesfirst]

anyone know solution to 6cv ???
i got 6 but others say -2
PS: if it's -2 then it's an integration question, and this is usually worth 2 marks not 1
so i think that 6 is right. What do you think?

I did also.


Because it said, "from the above parts"


So I just assumed that it was area.


Edit: It's out of 1 mark dude.

 

[trang8]

Edit: It's out of 1 mark dude.[/QUOTE]
i dont care. I want all the marks i can get. and yay you got the same as me HI FIVEEe
so happy lol hahha

 

[Craigw0w]

Wrong. It's -2, 6 is the area but it's not asking for area - it's asking for the integral with limits so it's integral=-2-2+2=-2

God fking damnit ><
Silly errors will be the death of me.