Tuesday

September 2, 2014

September 2, 2014

Posted by **Chiara** on Tuesday, April 19, 2011 at 4:02pm.

integral (x^3)/(sqrt(25+9x^2)) dx

/ l

/ l

/ l

/ l

/ l

/ l

/ l

/ l

/ l side A

/ l

/ l

---------

side B

*** sorry hard to draw on the computer

side a=3x

side b=?

side c=?

3x/5=?

(3/5) dx=?

(sqrt(25+9x^2))/(5)=?

- calculus -
**bobpursley**, Tuesday, April 19, 2011 at 4:07pmwell, if side c is the hypotenuse, then

side c= sqrt(25+9x^2)

side a=3x

side b=5

3x/5 = tan C

3/5 dx= d(tanC)

Sqrt(25+9x^2)/5=secC

**Answer this Question**

**Related Questions**

Calculus - Find the volume of the solid whose base is the region in the xy-plane...

Calculus II - Evaluate using u-substitution: Integral of: 4x(tan(x^2))dx ...

Calculus - For the following integral find an appropriate TRIGONOMETRIC ...

Calculus - For the following integral find an appropriate TRIGONOMETRIC ...

Calculus - For the following integral find an appropriate TRIGONOMETRIC ...

Calculus 2 - Evalute the integral of x/(x^2+4)dx using u-substitution and then ...

Math/Calculus - How would I solve the following integral with the substitution ...

Calculus URGENT test tonight - Integral of: __1__ (sqrt(x)+1)^2 dx The answer is...

trig sub question - Hello, I have a question concerning trigonometric ...

calculus - Calculate definite integral of dx/(x^4 * sqrt(x^2 + 3)) Over (1,3) I ...