Maths (Paper 3)

[ahmed t]

look at the first or second page of this topic it is mentioned there with a diagram

 

[ks136]

man the invigilators here dont care
my friends bring graphics calculators wid em

CHEATING...the thing i hate most....will u?????

 

[ahmed t]

i dont even have one
and even if i did i wouldnt use it
and the problem is not alot of ppl get good grades

 

[ahmed t]

today i took the edexcel exams
really messed up no calc aloud i had to do everything on paper
like 13545*386437 and shit like that

 

[ks136]

i dont even have one
and even if i did i wouldnt use it
and the problem is not alot of ppl get good grades

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[ahmed t]

how was ur business ppr 2day

 

[ks136]

how was ur business ppr 2day

IT was tooo easy...ALHAMDULLILLAH....bohat achcha ho gaya

 

[ks136]

I have a Query...integral of sin2x=1/2 cos 2x....is the integral of cot2x...or sec2x,csc2x...also calculated the same way

 

[fatema]

hey guys can any1 help me with oct/nov 2010 paper 33. qn 1, i get the ans as 1-6x+6x^2. the marking scheme gives itt as .....+24X^2 Some1 plz help me urgent thnx

 

[ahmed t]

nope these integrals are done in other ways
we only need to know
cos sin cot and tan and also sec^2
cot is cos /sin so it will be ln sinx
same with tan sin/cos so it will be -lncos
csc and sec are not in syllabus

 

[ahmed t]

at fatema
did u square the 2 on the RHS?

 

[ks136]

nope these integrals are done in other ways
we only need to know
cos sin cot and tan and also sec^2
cot is cos /sin so it will be ln sinx
same with tan sin/cos so it will be -lncos
csc and sec are not in syllabus

im talkng abt cot 2x

 

[ahmed t]

ok then it will be 0.5lnsin2x

 

[ks136]

i think it is 0.5 ln (sin 2x)

 

[ahmed t]

i edited my post

 

[Mortal9090]

nov 2009, p3, question 7-ii, how to make argand diagram?

 

[ks136]

nov 2009, p3, question 7-ii, how to make argand diagram?

which varient

 

[fatema]

at fatema
did u square the 2 on the RHS?

square wat 2 on the right hand side? y do u have 2 square, can u please write down the working for me, sorry for the trouble. and also the same paper nov 2010 paper 33 qn no 5... i dont get ln50 :S

 

[fluffycloud]

may june 2009 q6 please PLEASEEEEEEEE :lol:

 

[crash250]

hehheheehheheehe