quick q (1 Viewer)

[ToO LaZy ^*]

int [-pi/4 -> pi/4] (x³ / cos(x) )

does that equal 0?

 

[shazzam]

should? since odd function divided by even function =odd function...however the integrator tells me weird things

 

[ToO LaZy ^*]

yeah, that integrator is unreliable..
anyone got confirmation?

 

[CrashOveride]

Just substitue in f(-x). Clearly its an odd function and as you hinted earlier, equals zero.

 

[ToO LaZy ^*]

sweeeeet.

 

[mojako]

What is "the integrator"???

 

[ToO LaZy ^*]

it's a website that solves integrations

 

[CrashOveride]

shhh =p

www.integrator.wolfram.com

 

[mojako]

yeah i did a search on google and found that
but I cant see how you would put the limits there (to find definite integral)

 

[CrashOveride]

I dont think you do