Wednesday, 2 July 2014

trigonometry - How does one compute $cos((pi/4)(k-1 ))$?

How to compute $\cos \left( \frac{\pi}{4}(k-1) \right)$ ?

-

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

real analysis - How to find $lim_{hrightarrow 0}frac{sin(ha)}{h}$

How to find $\lim_{h\rightarrow 0}\frac{\sin(ha)}{h}$ without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...