Use substitution z=p*tan(t).
hi all
I am a new member here.Now I want to go to my problem directly,the problem is about an integration,i didn't understand it clearly.Here i have attached the document.It is done thereAttachment 18364 directly.Can anyone help me by showing the procedure step by step?
thanks
thanks a lot, can u help more elaborately? I am still unable to find how they got H=I/(2pi.roh)
if we use tan(t) then the limit will be changed to -90 to +90 degrees isn't it? then how can we proceed?
Step by step solution:
First of all I will change the your variables(for my own comfort)
So, and
Now, we use following substitution , we "put" it in:
so we get:
and
so,
Now, to return back to , substitute
I will leave the last part for you, only trigonometric calculation.