could you plz help!

can you find in terms of n the 3 possible values of ∫ cos nx dx with limits π and π/2 ?

Thanks

Printable View

- June 4th 2008, 02:44 PMbadi6integrate
could you plz help!

can you find in terms of n the 3 possible values of ∫ cos nx dx with limits π and π/2 ?

Thanks - June 4th 2008, 02:57 PMo_O
The integral should be easy enough. Just treat n as a constant and let u = nx. You should get:

Are you suppose to find any 3 values that your definite integral can have depending on the value of n? Pick n = an even number, n = an odd number, n = a fraction such as 1/2. - June 4th 2008, 03:06 PMbadi6Re:integrate
the exact quetion is:

if n is a positive integer, find in terms of n the 3 possible values of

http://www.mathhelpforum.com/math-he...17feaeb3-1.gif

Thanks - June 4th 2008, 03:11 PMo_O
Simply consider n = 1, 2, and 3