 
 
Students you can go to the playlist and watch all my videos
as here the complete playlist is arranged topic wise
so you all won't face any problem
as many students complain that we are not getting this topic
that topic. So here the complete
playlist is arranged topic wise so you can watch all my videos here
 
Hello students myself Dr. Gajendra Purohit
and you all are watching my youtube channel where I upload videos
for engineering
mathematics and bsc. Students if for any competitive
exam for which you are preparing where
higher mathematics is asked
so my videos are very helpful like CSIR-NET
GATE ,  IIT-JEM or IAS
for these all I develop a content here and a good
response I am getting from your side and students here on the I icon
here you can go and watch all my old videos. Students
here the topic that I have taken is
triple integral for which I have already uploaded two videos
so that also
you can go and watch on the I icon as if you will see that
so you will understand this topic very easily so here the next
topic is dirichlet integral and here the liouville's
extension of
dirichlet integral what it means that I will explain you
which means that this is a formula
for dirichlet integral in which it's value
can be found by this
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
now how we have to do this that I will explain you now
so first we will do this question then I will tell you how to solve this
that how is liouville's extension
applied in the dirichlet theorem. Right? so see here what is the question saying
 
 
we can do this by a normal way also like we did in the
previous video where we calculated the volume of sphere but that is quite a long method
but if we will use this concept then we will get the answer in 2 minutes
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
so this is how we solve this question
so students I think that you must have understood this topic
and here around 3-4 topics
I have taken around 3 videos on triple integration and my next video
will be on center of gravity and center of mass based on triple
integral or multiple integral based questions how we will
solve them that is also asked in the engineering and bsc exams
that i will tell you. After that teller's theorem for the
function of two variable and maclaurin's theroem
that I will bring for you. So students
be with me as I am already uploading good content for you and will do that in future too
Thank you so much. Please do just one thing that do like
share and comment and even do tell your friends
as if you will do this for me
then more good content and according to the response I will work for you
Thank you so much. Bye
