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Mathematics 9709 paper 12 how was it with you?

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Amna said:
ahmed t said:
hey for coordinate of C i got 6,3 and im prety sure about it cann some1 gibve me coordinates of A and B

i got C(6,3) too but i don't remember the co-ordinates for A and B. and i think (6,3) is the right answer... not (3.6,1)... i didn't get stuck in that question. it was easy. i'm pretty sure it's (6,3).

no C is not (6,3)

coz A was (2,5)
and b(10,9)

now solve the ans will surely be (18/5,9/5)
 
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i wrote da volume in last ques as 136 8/15 pi... vil dis be correct? .... and i wrote da range of cos^2x as > -1 and < 3 and not as -1 < f(x) < 3.. so vil this be correct? Plz ans any1.. tensed..
 
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Amna said:
arlery said:
aaakhtar19 said:
hey everyone these r my
answers wt abt urs hv i got
anyone rong plz discuss

I got the same answers but I think my range answer was wrong. Do you guys think the Mechanics paper will be easy if P1 was hard?


my range was -1 ≤ x ≤ 7. i think this makes more sense than -1 ≤ x ≤ 3. the amplitude is 4 and it's axis is at y=3... so 3 + 4 = 7.


it wud hv made a definite sense if the graph wud hv been of 3-4cos (x)
bt it was for 3-4cos^2(x)
its range is -1 to 3
 
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Talha said:
i wrote da volume in last ques as 136 8/15 pi... vil dis be correct? .... and i wrote da range of cos^2x as > -1 and < 3 and not as -1 < f(x) < 3.. so vil this be correct? Plz ans any1.. tensed..

ya the volume is rite
and range will also b credited full
at least it shud be.. :good: :good:
 
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aaakhtar19 said:
Amna said:
ahmed t said:
hey for coordinate of C i got 6,3 and im prety sure about it cann some1 gibve me coordinates of A and B

i got C(6,3) too but i don't remember the co-ordinates for A and B. and i think (6,3) is the right answer... not (3.6,1)... i didn't get stuck in that question. it was easy. i'm pretty sure it's (6,3).

no C is not (6,3)

coz A was (2,5)
and b(10,9)

now solve the ans will surely be (18/5,9/5)


aakhtar's rite i also got (18/5, 9/5 )!!!!
 
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YAYYYY !! So that means I only messed up the range part [inshAllah] I'll get 70+ :Yahoo!:
 
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In the question, when they said to draw the graph of cosx...the range was till pie....i constructed it till 2pie....so it would be accepted or considered to be wrong...???
 
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urgh yeah now that i solve it... WHAT was i thinking during the paperrr??? kill me. that was so easy!
same for the range. aarrghhh and i thought the paper went good!!
well, atleast now i'm expecting less than an a. otherwise i'd have been disappointed at the time of the result :/
 
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Ahk! I couldnt get how to solve the quadratic qs at all during the exam! :( It turns out to be a really simple qs! :( :( Messed up on the angle with the x-axis question as well, and the f^-1, postion vector of OD... And I gave only 1 solution for the cos^2 question! Gonna loose like 15 marks! Ouch! :( :/
 
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The paper was good! I gave only the positive solution of cos^-1. This and my graph with black pen was slightly shaky.
Expecting an even better Mechanics paper! :D
 
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i hope mechanics and statistics go well cause im aiming for an A*
i made only 2 silly mistakes in this exam one in simeltaneous and another in last question and im really pissed cause i had the time to revise but i didnt bother
 
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aaakhtar19 said:
hey everyone these r my
answers wt abt urs hv i got
anyone rong plz discuss
Hey.. all of my answers tally with ur.. just the vector mai mjhai lag ra hai koi -ive b likh aya hun.. but... F inverse ka mera x-3/2x-1 aya tha y use kar k.. nd if u put any value in this equation to domain and range inverse and function ki match karti hai so i'm sure k mine is write.. IDK k shayad tumhara b theek ho.. as he said using the answer to part 1.. acha wo r = 16 kya hai.. mjhai part nai yaad a ra.. plz tell me.. tension ho rai hai k kuch chor to nai aya
 
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The angle is 71.5 or 108.5 ! it didn't say acute or obtuse..so both are correcy
 
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it was gud apart from some silly mistakes....which i regret now :( but overall its was guddie gud :crazy:
 
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