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I NEED HELP IN THIS ONE:
P3 MAY HUNE 2008 QUESTION NUMBER 2, 3 , 4, 5
thanks man.You are not wrong you just need to further simplify your answer...
june o7 question no. 9 part two! p3 I know that haw to apply formula and to get the angle .
but unfortunately m unable to get the other direction vector of the plane OAB
we are with the eq. of the plane ABC
how to get the other one?? to get both direction ratios
A detailed exlaination will be good!
THANKYOU.....
I HAVE SOME MORE:
MAY JUNE 2007 QUESTION 6 AND 8
NOVEMBER 2007 QUESTION 7 AND 10
I need help in same question which is mayjune 2010 paper-31 number-9 but this time part-2iam not able to prove in mayjune 2010 paper-31 number-9 please have a look at what i have done and tell me where iam wrong and solve it to get the answer only for first part.
iam getting the answer as (1-x)^1/2 times by (1+x)^3/2 not able to get the same aswer required to be proved here is the attached files please reply as soon as possible.
I need help in same question which is mayjune 2010 paper-31 number-9 but this time part-2
though i know the concept like they have said the p is where the normal has maximum gradient wich i think is like 1/0 (infinite) and it will occur when the gradient of tangent=0 iam not sure whether this is how to solve so please solve this problem asap.
though i saw the marking sceme and what you said was written there but for me it doesnt make logic like why do to that?
(never studied that)
the thing is i know all that youre saying ofcourse i have studied thatwell to prove that the curve is having a maximum or minimum value at the point p we have to double differentiate!
i.e
d^2y/dx^2.... thats why he has differentiated this again
if simple gradient was asked than we can simply take the differentiation (no need for doing it again)
d^2y/dx^2 > 0 then itx a maximum value
d^2y/dx^2 < 0 then itx a minimum value ( it could be maximum for < or minimum fr > I m not sure but this so.)
now it has been told in the question that p is having a maximum value here so we have to show it by differentiating it again
I hope U understand it.
refer book as well, ITX in the book of ADDMATHS in olevels andin Alevels core maths too.
itx a simple rule
the thing is i know all that youre saying ofcourse i have studied that
but
the questions doesnt say maximum of the curve because we d d^2/dx^2 so see the nature of the curve whether its maxima or minima but the question says gradient of the NORMAL to the curve HAS ITS maximum value at p
bu
PLEASE GIUDE ME IN THESE:
MAY JUNE 2008 QUESTION 6 AND 8
OCT NOV 2008 QUESTION 7 AND 10
june o7 p3 question 6 part 2 (6ii)
Pls help how to verify.
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