Hey guys, I got two problems here, that are probably extremely basic; but i'm having a hard time with these. When I finally find a -substitution path I can generally work my way through, but I'm hitting a block on these, even just a pointer or what should be would be great!
1)
For this one, I'm trying to find a sub but I can't seem to make it work, I keep wishing real hard that the was under the radical and the was outside.
2)
Again, no idea what to set equal to because there is no with the
Any toss as to where to go next would be great, thanks for taking a look!
Hey, so I got an answer for the radical integrand, but I'm still having trouble with the Trig question.
I set , and to integrate my textbook has a formula that states .
So I applied this as follows,
Where and
Therefore,
=
=
=
=
= ?
I'm not sure where I'm going wrong here.
I was going to sub in the post that RandomVariable made, but I was just wondering if you could clarify that for me, I thought that identity was supposed to look like
EDIT- I'm mistaken, what you posted was but I'm still lost as to where that identity comes from? I can't find it anywhere in my textbook.
Thanks again for the help guys.
Wow Plato, that website is amazing, thanks for showing me that!
That solution showed me that I was wrong, but I was on the right track, messed up the u's somewhere.
Right off the bat, WolframAlpha says
Where and
So they say
=
=
Could you elaborate on this for me please? From the above relation shouldn't not I have no idea how they got this, I came up with
where
=
Thanks for your time!
Just let u= 2x. And it should beI was going to sub in the post that RandomVariable made, but I was just wondering if you could clarify that for me, I thought that identity was supposed to look like
EDIT- I'm mistaken, what you posted was but I'm still lost as to where that identity comes from? I can't find it anywhere in my textbook.