# Math Help - Calculus 2 Integration

1. ## Calculus 2 Integration

I've got a homework question I reallly need answered quick, I have the question:
Evaluate the Integral of (4x^2-9)^1/2

I think a trig substitution could be in order here...but not sure.

Thanks in advance for the help!

2. Originally Posted by habsfan
I've got a homework question I reallly need answered quick, I have the question:
Evaluate the Integral of (4x^2-9)^1/2

I think a trig substitution could be in order here...but not sure.

Thanks in advance for the help!
make the substitution $x=2sec(\theta)$

3. Originally Posted by habsfan
I've got a homework question I reallly need answered quick, I have the question:
Evaluate the Integral of (4x^2-9)^1/2

I think a trig substitution could be in order here...but not sure.

Thanks in advance for the help!
Actually the substitution $x = \frac{3}{2}sec(x)$ would be more useful.

-Dan