Question

integrate

Answer 1

W=∫[C] F•dr, where dr=dx*i+dy*j+dz*k
W=∫[C] Fx*dx+Fy*dy+Fz*dz=∫[C] x*dx+y*dy+z*dz where F=(Fx,Fy,Fz)=(x,y,z)... Basically it is a line integral.

Answer 2

You know any line integral methods? I LOVE green's myself. ;)

Answer 3

@chemENGINEER i love green too, igot 11pi/4-4before, but its not the right answer, im still trying it, anyway ,thx a lot

Answer 4

I see, did you interate on 0 to pi/2? That is the necessary parameters.

Answer 5

@chemENGINEER of course i did, then i got 11pi/4-4

Answer 6

i am just wondering if I use F, is it equal to (ti+tj+tk)?

Answer 7

@chemENGINEER ?

Answer 8

hmm i am just pondering the theory here. It is also notable that F=(gradient)f

Answer 9

is it df/dxi+df/dyj+df/dzk ?

Answer 10

Do you know how to use gradients?

Answer 11

yes, so then do the line integral over f

Answer 12

what i did is: integrate from 0 to pi/2 2tcost+2tcostsint+9tcost(sint)^2 @chemENGINEER