General Thoughts: Mathematics (1 Viewer)

[photastic]

lol
since the derivative=m and e^2x=mx
just sub out e^2x
divide through by m
and u get x=1/2

Equating the derivatives (1mark)
Finding the x and y coordinates in terms of m (1 mark)
Correct coordinate (1 mark)

Dw guys

 

[Chocolatebubble]

I got 359 degrees. I like to think he just 360'd noped the hell out of there because he was too tired to travel 210 kms

seriously though. i used sin rule and cosine rule and i got infinitely small numbers. what did i do wrong ;.;

 

[WileyWanimal]

I got 359 degrees. I like to think he just 360'd noped the hell out of there because he was too tired to travel 210 kms

seriously though. i used sin rule and cosine rule and i got infinitely small numbers. what did i do wrong ;.;

radian mode?

 

[shved]

I got 359 degrees. I like to think he just 360'd noped the hell out of there because he was too tired to travel 210 kms

seriously though. i used sin rule and cosine rule and i got infinitely small numbers. what did i do wrong ;.;

radians?

 

[Nukeboy]

I got 359 degrees. I like to think he just 360'd noped the hell out of there because he was too tired to travel 210 kms

seriously though. i used sin rule and cosine rule and i got infinitely small numbers. what did i do wrong ;.;

Lol'ed

 

[Chocolatebubble]

Lol'ed

radians?

radian mode?

SON OF A---

how many marks do i get for 2 pages of working out? 1 mark for 1 page pls

 

[WileyWanimal]

SON OF A---

how many marks do i get for 2 pages of working out? 1 mark for 1 page pls

Haha, if only... If so then I would get about 4/2 for show that rtA = rtA1 +rtA2

 

[xTheChibi]

Oh dear. i forget to sub m back in even though I found the correct value for it, so I had my coordinates of P in terms of m. LOL epic fail. Things i do under pressure....

 

[Chocolatebubble]

Haha, if only... If so then I would get about 4/2 for show that rtA = rtA1 +rtA2

that question was the masterpiece of my exam. it was the only time that i felt i could do math good

that being said, did anyone get pi/18 (6+16/root 3) for the simpsons rule question? I had everything basically doubled and i dont know what happened. im sure it's not radians this time

 

[Brad727]

6/15 max for Q15.

 

[WileyWanimal]

since y=mx goes through the origin, I substituted (0, 0) in. It was pretty quick like that.
I still got to (1/2, e) as my answer for the co-ords of P... what do you guys think... Will I still get the marks??

 

[shved]

that question was the masterpiece of my exam. it was the only time that i felt i could do math good

that being said, did anyone get pi/18 (6+16/root 3) for the simpsons rule question? I had everything basically doubled and i dont know what happened. im sure it's not radians this time

take out a 2 from inside the bracket and your done....

 

[WileyWanimal]

that question was the masterpiece of my exam. it was the only time that i felt i could do math good

that being said, did anyone get pi/18 (6+16/root 3) for the simpsons rule question? I had everything basically doubled and i dont know what happened. im sure it's not radians this time

doesn't that come out to the right answer if you factorise 2 out of that and cancel with the 18?

 

[Chocolatebubble]

take out a 2 from inside the bracket and your done....

............... (you can take the hand out of your face now)

at least it was a 3 marker, i can probably get 1 or 2 marks for that...

doesn't that come out to the right answer if you factorise 2 out of that and cancel with the 18?

yes.

im just a derp

 

[WileyWanimal]

at least it was a 3 marker, i can probably get 1 or 2 marks for that...

2/3, surely?

 

[shved]

Did you have to leave q16)c)iii) in exact value? I just rushed it and put decimals since i had no time

 

[yma]

How about the derivative graph??


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[WileyWanimal]

How about the derivative graph??


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I got a concave down parabola with TP at 1 and roots at -2 and 3.
Don't know if that's right though. :s

 

[Chocolatebubble]

I got a concave down parabola with TP at 1 and roots at -2 and 3.
Don't know if that's right though. :s

shit i did a cubic curve, a min at a, maximum at B, cutting at c like this: \/\

im 80% sure i got it wrong though

 

[chrisdelinet]

How about the derivative graph??


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minimum s.p. at (-2,0) , max at (1, ...) and cuts x-axis at x = 3