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prove by induction on n that
please help
sorry i made a typing error the function should have been
can anyone find the limit of this function? I attempted it and got the limit as zero but looking at the graph of this function i assume this is wrong please help!!
I'm trying to solve the following function using Stokes' theorem, however i have got stuck finding out the surface normal vector
(A,I,J,K are vector constants)can anyone show me a method of finding out the vector normal please????
hi i've been trying some revision questions and i've come across the following question which puzzles me reatly as im not sure atall how to answer it! any help or suggestions will be much appreciated!!!
For a closed surface S containg a volume V show that
hi im trying to find the gradient of the function
but i'm struggling to differentiate it in the following form please help!!
hey i'm stuck on the following question
find the limit if it exists
i think the limit is 0 but i dont know how to prove this can anyone help???
I've been studying prime numbers but have got stuck on the following question, any suggestions would be much appreciated!!!
if p is prime, use al-Haytham to prove that
(p-2)!=1 mod p
I've looked at the proof when for (p-1)! but i havent been able to see how to adapt the proof to this question please help!!!
So is this correct?
let
i now need to find the unit normal to the surface
at the point (2,-2,2)what i thought i had to do for the first part is:
marks out of 100 in an exam are normally distributed with mean 68 and variance 25
suppose the top 15% of students recieve a grade A. what is the minimum mark that a student must have to achieve to get an A??
the pass mark is 54% given that a student passed the exam, what is the probability she got an A??
please help!! if anyone could show me roughly how i would do this sort of question
f(x,y)=g(u,v)
Does anyone know how to integrate a function like this???
please help!!
a particle undergoes a simple random walk along the x axis with an absorbing barrier at x=0 and a reflecting barrier at x=4.
At times t=0,1,2,3.... the particle moves one unit to the right with probability p and on unit to the left with probability q=1-p
does anyone know what the transition matrix would look like????
does anyone know how you would solve an integral like this???
would i not do it this way?
im now trying to work out the speed immediately before the impact
which equation do i plug t into??
yes but im slightly confused as i'm not given u or g i might be having a blonde moment!
oh yes i see where my integration went wrong but is there a way of getting an exact result for t in terms of seconds?
well i figure that when the two particles collide the postion vectors will equall one another
the position vector of particle 1 is given by r=xi+zk
as the only force acting on it is gravity, from newtons second law mr''=-mgk
integrating with respect to t gives: r'=-gkt+c (where c is a constant)
at t=0, r'=0 so c=0 so
r'=-gkt
integrating again gives:
the position vector of particle two is given by:
when i set these equal to one another i get
PLEASE HELP!!!!!!!!!!!
im really stuck
a ball is thrown vertically upwards with speed 4m/s, neglecting air resistance and taking g=9.8 find the time taken for the ball to return to the ground
right this is my solution:
using newtons second:
does anyone know if i can simply double this to get the total time taken or do i have to integrate again?