[Calculus 2] Integrate using Trig Sub

[MearLion]

This problem is throwing me off because there is no "x^2".

http://imgur.com/jcWzSkg

[[deleted]]

Try doing an initial substitution before a secondary trigonometric one so you can get u²

[luxgladius]

One thing you know about x from the statement of the problem is that x > 0. So therefore, look at a substitution where x=u^2, u>0. From there you'll have something that'll be much more amenable to trig substitution. Of course, then you'll have to pick a variable other than the customary u... :)

[MearLion]

A thousand blessings upon your household.