Integration question (1 Viewer)

[zeek]

Hey guys, can anyone do this question please...

Integral of [x/(1-x^2)^(3/2) dx]

sorry about the formatting thx

 

[Riviet]

Let u=1-x²
du=-2x dx
x dx = -du/2
Substitute into integral and you should be able to do the rest.

 

[zeek]

oops i forgot to mention that i needed to solve it using trig substitution
thx

 

[zeek]

dw i got it now lol

thanks for the help though riviet

 

[zeek]

ok what about this one

integral of [(x^2 + 3)/(x^2 + 9)^(1/2)] dx using trig substitution please

thx


Answer is

x/2.sqrt(x^2 + 9) - 3/2.ln(sqrt(x^2 + 9) + x) + K

.... dw i've got that too now