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Mathematics: Post your doubts here!
Ok wow that was really a slap-in-face kind of simple!! :O x_x thankuu so much iKhaled and MustafaMotani :) i seriously don't know how these cie people do this!! they just get into ur heads and play mind games with u given just over an hour with them and them not even being present!! :O >__< urgghh -
Mathematics: Post your doubts here!
ikr!! :O its like our megaminds are reall evil megaminds!! :O -
Mathematics: Post your doubts here!
i still don't get it... how did u get S1=9 ?? :'( sorry for the big time bother but this question is beating the hell out of me -___- -
Mathematics: Post your doubts here!
wth!! :O and how did they come up with S1=9 ???? Gosh i'm gonna kill those freakking examiners!!! :O -
Mathematics: Post your doubts here!
y=2 is the equation of the straight line the area under the shaded region = area under line - area under graph that is why we had to subtract the two integrals -
Mathematics: Post your doubts here!
ohh wow nice explaination but are we suppposed to know the convergent thing?? I never did it!! :O A star -
Mathematics: Post your doubts here!
i don't know how to write so much maths here cz it gets all confusing but i'll try look if f is a decreasing function then dy/dx should be <0 find dy/dx of this funciton which wen i calculated it was pretty wierd: - dy/dx = -3(1-x^2)/x^4 is this wat u r getting too? -
Mathematics: Post your doubts here!
drawing the graph like we normally do for cos graphs?? taking 4 values on x-axis like (pie)/4 and stuff?? -
Mathematics: Post your doubts here!
volume of rotation of this graph will be (pie) x integration of the square of the equation in terms of y the equation will be (y^2 - 1)/3 ........... check if its ryt. take the square of this equation and integrate it. use integration limits to calculate integrant and then multiply it by pie... -
Mathematics: Post your doubts here!
oh that's a tough one... can u like solve it totally bcz i'm not sure i ever covered this concept o.O :O -
Mathematics: Post your doubts here!
hhahaa that's more likiiee ^_^ u're welcome :D (y) -
Mathematics: Post your doubts here!
yeah i remember u too.... a year gone by and we meet agin with the same (or rather more vicious and a whole lot bigger) MONTER looming over our heads!! :P confeession: with the help of u guys because of xpf i never considdered attending a past paper session or any extra help watsoever :) (y)... -
Mathematics: Post your doubts here!
falcon678 in part ii find AB vector first: AB = OB - OA if OA is perpendicular to AB then the angle between them is 90 so : OA . AB = 0 solve this out bcz i'm not doing it again or other people will post and post and post all the answers again :P no really try it urself u'll b able to do it... -
Mathematics: Post your doubts here!
thanks for the appreciation ^__^ -
Mathematics: Post your doubts here!
aw man falcon678 I swear wen i started typing that freaking answer urs was the last post there and now at least 3 other people have replied to ur post and answered while i was typing my fingers off :O :P no fair!! :P -
Mathematics: Post your doubts here!
this is just how i might work through the question so just look at it and then its ur call totally.,.. well here goes: i) if OAB is a straight line take them lines to be parellel [ if vector a is parellel to vector b then a=kb where k is a constant] find out that constant here as the... -
Mathematics: Post your doubts here!
ok thanks.. igot the integration one by myself already but thanks all the samee :) and yeah our teacher never told us this ..... thanks o.O -
Mathematics: Post your doubts here!
Q 6i) and Q9ii) yelps for help :P :unsure: -
Physics: Post your doubts here!
sorry i did not get ii) o.O how do u work with just adding 2 forces in different directions and not even considering the angle? is that even possible?? o.O -