Maths AS Oct /NOv session

[Islu_jf]

Anybody giving it this session? ?
and where can i find the model answers for the june 2010 As maths??

 

[Islu_jf]

And if we want to integrate an inverted curve.. like the one in variant 12 Question number 9??
Does the area we find - is under the curve or upper??

Please guys ... i really need help.. My school is teacher-less!!

 

[PlanetMaster]

All 'May/June 2010' resources are available in download section.
If you are confused with the file codes, please see http://www.xtremepapers.net/guide.html

Integrating curve gives area with respect to X axis.
It doesn't matter whether the curve is inverted or not; all that will matter is where the X-axis is!

 

[Islu_jf]

k can we integrate a line??

 

[kamina1]

in this ques...when u integrate the curve...it gives area under curve coz u integrate curve with respect to x-axis...its gives the complete area includiing shaded as well as unshaded region...once u find this area by applying limits...subtract this answer frm the area of trapezium formed by the straight line..

 

[M.S.Princess93]

k can we integrate a line??

yes u can integrate a line it is more easier but in some quests u have to calclulate the area in form of trapizium or rectangle.like in june o9 ,as there is more than one line

 

[Islu_jf]

Awesome.. so do a trapezium for a better answer anyway..
thnks guys. =)

 

[PlanetMaster]

Trapezium is quick but it won't give a better answer.
It depends on the accuracy required.
If the question says exact, integrate for max accuracy.
If it says estimate, trapezium will do!

 

[Panchimma]

ya.. integrating a line also gives the same answer . Its easy.

 

[MAVtKnmJ]

Both answers would be same if done correctly because ultimately you are doing the same thing.