You are not logged in.
wat is sec^2x where x=180?
many thanx!
Last edited by hustla7 (2006-11-14 06:21:25)
Offline
sec x is the same as 1/cos x.
cos 180 = -1, so sec² x is (1/-1)², which is 1, not -1.
Last edited by mathsyperson (2007-01-29 01:27:55)
Why did the vector cross the road?
It wanted to be normal.
Offline
thanks a lot mate
Offline
(1/-1)^2 = 1 not -1
...Oops. It's unlikely that hustla will see that correction after more than 2 months, so hopefully they spotted it themselves. Thanks for posting.
Why did the vector cross the road?
It wanted to be normal.
Offline