i've showed what i attempted as mentioned above. i just really got stuck from there onwards. I've of course tried reading up my textbooks and lecture notes prior to posting. had i fully understand, i wouldn't have posted.
yes i have the laplace transform table and able to do basic inverse...
Need urgent help on laplace transform and PDE !
I'm stuck with this 2 questions ...
q1) Using laplace transforms, solve: y" + 4y = r(t), where r(t) = {3sint, 0<t<pi, -3sint, t>pi y(0)=0, y'(0)=3.[/color]
this is what i get after rewriting for the step function: 3sint [1-u(t-pi)] +...
Hi, thanks for reply. For 2), the shape should be cylinder with radius a. I think the parametric eqn is, acos@i + asin@j + zk, 0<= @ <= 2pi, 0<= z <= h. for ru x rv = -(acos@)i - (asin@)j + (acos^2@ + asin^2@)k. Is it correct ? I need to know how to find out how to derive the magnitude and...
URGENT ! need help with these 3 integrals problems
Hi, I need urgent help with these 3 integrals problems ... been stuck on the questions and the deadline is Friday. Thanks a lot ! :smile:
1) For the green's theorem,
>> see attach
I got the answer : 27.552. Not sure whether it is correct...