Thank you sooo much, really. I was very confused by the solutions in my answer sheet and only your video helped me understand it. Thank you for making these videos you definitely saved my exam results))))
Hi i have a question, i made a similar excersise "e^2x cos x" so, can i divide e^2x by 10 ? cause the answer gave me 2e^2x cosx+sin x e^2x but by 5 Cheers from Mexico
This applies when you have a power of e multiplying sin or cos because differentiating and integrating the power of e is the same apart from a constant multiplier, and similarly for sin or cos.
Should it not have +C at the end?
@comic4relief: Yes, well-spotted! See community tab posting. Does this link work? th-cam.com/channels/D3qmkbrO5ol7mHl3x4ZGBQ.htmlcommunity
@@MathsWithJay link works fine
Thank you sooo much, really. I was very confused by the solutions in my answer sheet and only your video helped me understand it. Thank you for making these videos you definitely saved my exam results))))
Most welcome 😊 Thank you for letting us know
Thanks for the video!! Really helpful. Greetings from Spain
@RBN GJN: Thank you so much!
How are you in Spain? London is so quiet at the moment.
@@MathsWithJay Same here! We must stay united. Take care
Brilliant video! really appreciate the help
@Ayham Saffar: Thank you!
This video was super helpful; thanks for posting it!
You're so welcome!
Thanks a lot, Jay!
My pleasure!
Very well executed but I think by using complex numbers we can do it faster.
Not all students will have studied complex numbers by the time they want to do this type of integral
How did that become "10 I"? I did not get that part. 8:34
We had I= ....- 9I, so we add 9I to both sides to get I+9I=10I
@@MathsWithJay Thank youuu
Hi i have a question, i made a similar excersise "e^2x cos x" so, can i divide e^2x by 10 ? cause the answer gave me 2e^2x cosx+sin x e^2x but by 5
Cheers from Mexico
Your example is similar to the one in this video....remember you can check your answer by differentiating. Greetings from England!
I thought for choosing U it has to follow the LIATE rule? where cosx would be U since trigo takes precedence over exponential
You can do this one either way
@@MathsWithJay Oooh okay thank you so much!
This applies when you have a power of e multiplying sin or cos because differentiating and integrating the power of e is the same apart from a constant multiplier, and similarly for sin or cos.
I had the same question, thanks
I love you.
😍
The u value must be cosx not e^3x remember liate trig comes first n not exponential
"must be"?
@@MathsWithJay yes that's a rule
Interesting...where are you based?
Yeaaah that made me confused
Thanks reducing that shitshow of an equation to "I" really helped lol.
Y
Do this by table method
@IP: Done...see Community tab...Does this link work? th-cam.com/channels/D3qmkbrO5ol7mHl3x4ZGBQ.htmlcommunity
I think this way totally wrong !
Let us know if you find a method you like!
@@MathsWithJay by using tabuluar method we derivtive sin x and integrate e^3x
How could I drop a pic here ?
It's not possible to upload a pic here...so put it on your channel instead and then let me know it's there
th-cam.com/video/zGeUcz8eeMQ/w-d-xo.html. I drop video there hope you seeing