Mathematics
OpenStudy (anonymous):

to find the integral of x/[(9-(x^2))^1/2)], is it quicker to use the quotient rule of u substitution?

OpenStudy (anonymous):

* or, not of

OpenStudy (anonymous):

i'd use substitution

OpenStudy (anonymous):

should i substitute the x^2? i'm confused with how i should deal with the sqrt..

OpenStudy (anonymous):

no substitute u = 9-x^2

OpenStudy (anonymous):

no the answer is $-\sqrt{9-x ^{2}}+c$